Rewrite the following sentences as required. (根据所给要求，改写下列句子，每空格限填一词)
【小题1】Lily had a good time during her stay in Beijing. (改为否定句)
Lily ________ ________a good time during her stay in Beijing.
【小题2】We have a class meeting once a week. (对划线部分提问)
_________ _________ do you have a class meeting?
【小题3】Many countries make laws to stop smoking in public. (改为被动语态)
Laws _________  _________ by many countries to stop smoking in public.
【小题4】The river pollution is serious in our country today. (改为感叹句)
_________ _________ the river pollution is in our country today!
【小题5】Robert is so short that he can’t yet reach the pears on the table. (改为简单句)
Robert isn’t _________ _________ to reach the pears on the table.
【小题6】I can’t give you better advice than that. (保持原句意思)
I can _________ give you _________ advice.
【小题7】Bill didn’t go to bed until he finished writing the letter at 11:45 last night. (保持原句意思)
Bill _________ _________until he finished writing the letter at 11:45 last night.

【小题1】.Everyone is at school e       Mary. She is ill in hospital.
【小题2】Last night I didn’t go to bed u      the football game was over.
【小题3】Yang Lei made a d      to work at a school in China’s rural areas.
【小题4】Tim said Peter didn’t work there a     . He found a new job.
【小题5】I’m very h_____. Can I have some bread?
【小题6】Don’t talk in the room. The baby is s_____.
【小题7】 All of them are very t_____. But they didn’t stop to have a rest.
【小题8】I wonder w__________ the new house is big enough or not.
【小题9】Many students have h_______, such as reading, painting, growing vegetables in their gardens, and looking after animals.
【小题10】Last Sunday Kate fell off her bike and h ______herself.

【小题1】They have planted about five ________(千) trees in and around the town in the past few years．
【小题2】I’d like eight ________(条)of bread．
【小题3】She will be the________ (第五十一个)to speak at the meeting．
【小题4】He didn’t go to bed __________ (直到)his father came back．
【小题5】Where is your mother？ She’s __________(准备) dinner in the kitchen.
【小题6】Whose bag is this? It’s one of my ________(邻居).
【小题7】There are two hundred________ (书架)in our school library．
【小题8】Why don’t you visit our__________ (当地的)farms with us?
【小题9】I hope we can have less _________(污染)in the environment in the future．
【小题10】一How many students are there in the dining room now?
一 _________(没有一个)．

—Tom, you look tired this morning. What’s wrong?

—I was so busy that I didn’t go to bed _____ 12 o’clock last night.

A. until　　　　　 B. when　　　　 C. though　　　　　 D. unless