70. không hiểu đề.

71. Many people are fond of going to the countryside at/on weekends.

72. It takes her two hours to finish such a difficult test. (It takes+ time+to-V)

73. I was invited to the party on the occasion of her birthday last week. (Tôi được mời đến bữa tiệc nhân dịp sinh nhật cô ấy vào tuần trước)

74. At Tet time, Vietnamese people celebrate the beginning of spring. (Vào dịp Tết, người Việt Nam đi lễ đầu xuân.)

75. The telephone is invented by Alexander Graham Bell.( Điện thoại được phát minh bởi Alexander Graham Bell)

70 I am interested in reading scientific books.

71 Many people are fond of going to the countryside at the weekends.

72 It takes her two hours to finish such a difficult test.

73 I was invited to the party on the occasion of her birthday last week.

74 At Tet time, Vietnamese people celebrate the beginning of spring.

75 The telephone is invented by Alexander Graham Bell