7. The climate of the earth ________warmer at the moment. * 0/3 C.has become A. becomes D.became B is becoming 8.My friends ________ Singapore before. This is their first time here. * 0/3 A. don’t visit B. didn’t visit A. haven’t visited D. visited 9.The last volcanic ________is really worrying the scientists. * 0/3 B. Eruption A. wind D. drought A. Flood 10.Which country is home to the kangaroo? * 3/3 B.New Zealand A. Canada C.The USA D. Australia 11.The train __________ the railway station at 8:00 a.m. every morning * 3/3 A. leave B. leaving D. leaves C. will leave 12.If you ________the president, what would you do to help the environment * 0/3 A. Are D. is C. were B. had been 13.I ________ breakfast right now. Can you call a little later? * 0/3 C. have cooked B. am cooking D. have been cooking A. cook 14.The first mobile phone ________in the 1960s. * 0/3 D. has been made C. is made B. made A. was made 15. By the time I started primary school, I_______ how to ride a bike. 0/3 A. had learnt D. learning B. learn C. was learnt 16.My friends ________ Singapore before. This is their first time here. * 0/3 D.visited B.didn’t visit C.haven’t visited A.don’t visit 17..The last volcanic ________is really worrying the scientists. 0/3 A.wind C.Flood D.drought B.Eruption 18.Which country is home to the kangaroo? * 3/3 B.New Zealand C.The USA D.Australia A.Canada