用適當?shù)那閼B(tài)動詞完成下列對話
1. A: ______I finish my homework now?
    B: No,you____.You____do it tomorrow.
2. A: This bag is very old. ____you still use it?
    B: Yes,I can.
3. A: _____I go out and play football,mum?
    B: No,you______finish your homework first.
4. A: ______I play football in the street?
    B: No,you____.
5. A: _____you find many students in the classroom?
    B: No,I_______.
1. Must,needn't,may/can    2. Can    3. May,must    4. May/Can,mustn't/can't     5. Can,can't
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科目：初中英語 來源： 題型：

用所給動詞的適當形式完成短文，必要時可加助動詞或情態(tài)動詞。

It's sometimes reported that strange objects have been seen high up in the sky．These unidentified（未確定）flying objects __1__（make）a lot of people interested．Some of the reports about them are difficult __2__（believe）．Some have been explained in scientific ways，others have never been explained．

It is not easy to decide whether a report is true or not．One report of UFOs __3__（come）from a British plane on its way from New York to London in 1954．The British plane __4__（fly）over an island at 19,000 feet when the captain noticed that something was on their left and a little lower than their plane．It's about five miles away．

“It was not one object but several，” the captain said．“We saw one large and six smaller objects．I sent out a radio to report about them and I received the answer that the other planes would come out to meet us．Before the planes arrived，the smaller objects entered the big object．The big object then became smaller and __5__（move） away fast．”

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