It"s polite _______ "thank you" .[ ]A. to say B. say C. saying D. to express

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It"s polite _______ "thank you" .

[ ]

A. to say
B. say
C. saying
D. to express

答案

举一反三

We have helped some pandas,but there is still a long way ______.

[ ]

A. go
B. to go
C. going

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We must study hard ________ our English.

[ ]

A. to improve
B. improving
C. improved
D. improve

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The teacher asked the student ________.

[ ]

A. stop talking
B. stop to talk
C. to stop talking
D. stop to talk

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We all know that it is very kind ______ him ______ us. [ ]
A. for…to help
B. of…to help
C. for…helping
D. of…helps

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用所给词的适当形式填空。 1. You are never too old _______ (learn).
2. Lucy always spends her free time _______ (play) computer games.
3. Who is _______ (tall), Jim or Tom?
4. Don"t forget _______ (buy) some books for me.
5. A lot of _______ (visitor) come to see the Great Wall every year.

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