1. The streets here _____ (clean) by the cleaners every morning. 2. These flowers _____ (water) once every three days. 3. Many new things _____ (invent) by the scientists in the 20th century. 4. Yesterday a composition on protecting animals _____ ( write) by the students of our class. 5. The little girl had learned to play the piano _____ the age of five.
1. When he was five, he_________(begin) to read and write． 2. If you ask him,he_______(help) you. 3. When water________(become) gas,we call it steam. 4. We________(have)a ball game if it is fine tomorrow. 5. As soon as water boils,it________(change) into vapour little by litle.
基本語法。 1．These toys _____ _____ (make) of metal. 2. Our house _____ _____ (build) in 1995. 3. The telephone _____ _____ (invent) by Alexander Graham Bell in 1876. 4. He _____ _____ (know) to be a great hero. 5. The next boy _____ _____ _____ (ask) to answer another question.
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(生產)many different kinds of toys for children.
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.
