题目内容

基本语法。
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. are made   2. was built     3. was invented    4. is ( was) known             5. will be asked
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基本语法。
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.
基本语法。
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.
基本语法。
1. We must protect the water here from____    (pollute).
2. The outside of the earth       (make) up of many  different plates.
3. Two         (three) of the students are girls in our class.
4. People standing on the top of the high mountain breathe much        (hard) than the people at the foot  of 
    the mountain.
5. These unwanted things should         (take) away at once.
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.

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