43. Cutting down on energy use is the best way to help reduce global warming.
A. Shrinking               B. Declining               C. Decreasing               D. Increasing
44. We should grow more trees so that they can absorb more carbon dioxide from the atmosphere.
A. Emit                     B. take in                    C. consume                   D. cut off
45. Releasing too much carbon dioxide into the atmosphere can lead to global warming.
A. Result in                B. result from                    C. cause               D. activate
46. Farmers turned to bio-fertilisers after they had been told about the dangers of chemical fertilisers.
A. Trusted               B. disbelieved              C. counted on                  D. depended on
47. The factory owner denied having said that he should take responsibility for the damage that his factory caused to the surrounding environment.
A. Refuted             B. rejected                  C. opposed                  D. accepted
48. Some scientists are accused of not having reported the effects of climate change.
A. Exonerated                  B. blamed             C. charged                  D. complained
49. They were criticised for having acted irresponsibly towards the environment.
A. Blamed                   B. commended             C. condemned              D. denounced
50. The factory was fined for having dumped a huge amount of rubbish in to the river.
A. Pnalised                   B. levied                    C. compensated                D. punished

75. He thanked us__________ having contributed to cleaning the surrounding

environment.

A. On                          B. to                        C. with                        D. for

76. He was suspected ___________ having received presents from the local

companies and ignored their violations of the environmental law.

A. About                         B. on                      C. of                        D. for

77. Even when arrested, he denied __________ cut down that tree.

A. Has                      B. having                   C. have                       D. have had

78. Those farmers admitted ___________having used more chemical fertilisers than

needed.

A. On                        B. about                        C. for                      D. to

79. He forgot ________ promised to cut down on the carbon dioxide emissions

into the atmosphere.

A. To promise               B. have                   C. having                D. had

80. I remembered hạving __________ off the lights before leaving home.

A. Switched             B. switch                 C. switching                D. switches

81. He regretted not__________ registered for military Service last spring.

A. Have                      B. having                C. having had                 D. having done

82. The local residents suspected the autborities __________ having kept the

pollution level secret from the local people.

A. About                      B. on                   C. of                                D. for

83. He denied having polluted the environment,________ no one believed him.

A. However                 B. despite             C. but                     D. in spite of

67. The president of the company officially apologised to the local residents having dumped a large amount of raw sewage in the area.

A. About                      B. with                       C. at                   D. for

68. The factory was accused __________ having caused higher level of pollution

to the environment.

A. About                         B. on                     C. of                      D. for

69. We all admire him _________ having changed both his attitude and behaviours towards the environmental issues.

A. About                     B. for                         C. with                       D. at

70. Human activities are also blamed ___________ having contributed to global

warming.

A. For                          B. on                        C. at                        D. with

71. We congratulated him _________ having invented an energy-saving device.

A. For                           B. at                         C. about                 D. on

72. He was criticised_________ not having put the elephant poachers in jail.

A. At                          B. about                       C. for                     D. on

73. His company was punished ____________ not having dumped the rubbish

properly.

A. By                          B. for                          C. about                        D. because of

74. The city mayor praised all voluntary students ____________ having cleaned the

playgrounds for the children.

A. For                            B. because of                C. at                        D. due to