78. - Let me help you prepare dinner, Mom.

　 - 　　　, but your homework hasn’t been done. You’d better finish it first.

　 　A. that’s all right　　 　　　 B. you’re welcome　　 C. that’s very kind of you 　　 D. I’d love to

77. -You could have asked your brother for help. He is good at math.

　 -Yes, A whole day　　 .

　 　A. will be wasted　 　　　　　　　 B. had wasted　 　　　　　 C. was wasted　 　　　　　　　　 D. would be wasted

76. - Happy birthday, Helen. Here are some flowers for you.

　 - 　　　.

　 　A. Don’t be so polite　 　 B. How much is it?　　 C. Oh, how beautiful they are　　　 D. Thank you very much

75. Mr Jiang bought his foreign friend a piece of　　 cloth.

　 　A. blue Chinese silk　 　 B. Chinese blue silk　 　 C. Chinese silk blue　 　　　　 D. blue silk Chinese

74. - It might be nice to see a film this afternoon.

　 - 　　　?

　 - Fine. I’ll pick you up at 2 o’clock.

　 　A. Yes, why not　　 　　　　　　　 B. No, not at all　　 　　 C. Sure, I hope not　　 　　　　 D. Sorry, I’m afraid not.

73. - Hi, Tracy, you look tined.

　 - I am tired. I　　 the living room all day.

　 　A. painted　　 　　　　　　　 B. had painted　 　　　　 C. have been painting 　　　　 D. have painted

72. 　　　for the free tickets, I would not have gone to the film so often.

　 　A. If it is not　　 　　　　 B. Were it not　　 　　　　 C. Had it not been　　 　　　　 D. If they were not

71. -My daughter has passed the exam.

　 -Congratulations! She’s really intelligent.

　 - 　　　　.

　 　A. No, no, she is nothing　　 　　　　　　　　　　　　　　 B. Oh, thank you

　 　C. Sometimes she is intelligent　　 　　　　　　　　　　　　　　 D. You are right

70. - Oh, it’s you! I　　 .

　 - I’ve just had my hair cut and I’m wearing new glasses.

　 　A. didn’t recognize　 　　 B. hadn’t recognized　 　 C. haven’t recognized　　 　　 D. don’t recognize

69. I’ve won a holiday for two to Florida. I　　 my mum.

　 　A. am taking　 　　　　　　 B. have taken　　 　　　　 C. take　　 　　　　　　　　　　　　 D. will have taken