基本语法。 1. I haven't heard from him ______ he went to America. 2. He won't be here______he is invited. 3. He will not go to the cinema ______he is very busy. 4. We found the key ______she had left it. 5. We found the books two days ______he had gone away.
1. There (be) fewer cars in the future. 2. She wants to be a (science) when she grows up. 3. We can see _______(hundred) of birds flying to the south. 4. There is ________(little) pollution in our city than last year. 5. I can do my homework by ________(I). 6. He lives in a tall ________(build) and goes up and down by elevator. 7. It took me an hour ________(finish) my homework. 8. In two hours Miss Yang ________(fly) to Paris. 9. Betty ________(write) to her parents the day before yesterday. 10. The _______(factory) produce(生产)many different kinds of toys for children.
1. SuCh things can no__________(long) be allowed to go on. 2. The old woman used__________(be) kind to those animals. 3. __________(difficult) the questions are,__________(likely)I am to be able to answer them. 4. He would rather__________( listen) to others than __________(talk) himself. 5. Tom was willing __________(learn)to play chess with me.
1. I was ill ,so I __(不得不)stay at home today. 2. You____ (不必)return that book to me at once. 3. We _ (可能去)to visit my father's farm during the summer vacation. 4. You ___ (可以)call him. He __ (不可能)do anything else this afternoon. 5. ______(或许)she will invite you to her party ,too.
1. She_________(know) kids are like that when they first come to school. 2. My parents were womed whether I________(can get) used to my school life. 3. She_________( know) he was not popular with other kids. 4. He was so shy that he_________ ( not talk) ro anybody. 5. He couldn't understand why they _______( have) to put him in school.