There"s a man at the reception desk who seems very angry and I think he means __

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There"s a man at the reception desk who seems very angry and I think he means _____ trouble.

A．making

B．to make

C．to have made

D．having made

答案

解析

略

举一反三

After the Arab states won independence, great emphasis was laid on expanding education, with girls as well as boys _____ to go to school.

A．to be encouraged	B．been encouraged
C．encouraged	D．be encouraged

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_____ it or not, his discovery has created a stir in scientific circles.

A．Believe

B．To believe

C．Believing

D．Believed

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The pressure _____ causes Americans to be energetic, but it also puts them under a constant emotional strain (过度紧张).

A．to compete	B．competing
C．to be competed	D．having competed

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Although punctual himself, the professor was quite used _____ late for his lecture.

A．to have students	B．for students" being
C．for students to be	D．to students" being

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As early as 1647 Ohio made a decision that free, tax supported schools must be established in every town _____ 50 households or more.

A．having

B．to have

C．to have had

D．having had

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