【正文】
me ________ our class. (start) have a lot of things ________ you. (tell)39。m afraid they would not allow him ________ here.A. to smoke B. smoking C. smokes D. smoke5. Mother told me ________ the water before I drank it.A. boiling B. boiled C. boil D. to boil6. On my way home, I stopped _______ some food.A. buy B. to buy C. buying D. bought7. John was made _______ the car for a week as a punishment.A. to wash B. washing C. wash D. to be washing8. The sittingroom needs _______, but it39。ve ever been in. You just had to hope you39。(as a result)。t know whether and when ________ Shanghai in two days. (leave) is not sure how ________ out the maths problem. (work)Ex21. Don39。d better ________(stay) at home and ________ (do) your homework.39。s a terrible ( 19 )___________.David:Yes, and another problem is all the ( 20 )______that we produce. We burn a lot of garbage, and once again, the gases pollute the atmosphere. The situation couldn39。ll do my best! It39。ve seen a lot of (4) of that, haven39。m afraid it is. And at sometime in the future, the ice may melt pletely. Then it39。s heat from leaving the atmosphere. And factories (11)________ chemicals that do the same thing. So as a result, the climate is getting warmer.Interviewer:From what I understand, (12)___________from cars is a (13)_________problem.David:You39。t help but feel very (23 )__________.David:Yes, well, it is (24 )_________. But governments are beginning to do something about it. I don39。m very glad ________ you again. (hear from) article is not easy ________ . (understand) didn39。ll have to wait until Saturday.A. be cleaning B. to be cleaned C. clean D. being cleaned9. The first thing I want t