题目内容

It is said that he has killed more than ___________ people.

A. three hundreds
B. three hundreds’
C. three hundred’s
D. three hundred

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I ordered that the books _____ at once.

A. would be sent
B. would send
C. be sent
D. send

If he_____ his energe to the work, he would have been sucessful.

A. has put
B. put
C. had put
D. was putting

If someone asks if you are free at a certain time and invites you to an event, you are not required to commit yourself until you know what the invitation is for.

A. 如果某人要求你在一个特定时候有空,还邀请你参加一个活动,你不必要求你自己有空直到你知道这个邀请是什么。
B. 如果某人问你是否有空,并要求你参加一个活动,如果你不知道邀请是什么内容,也不需要抽出时间去参加。
C. 如果有人问你什么时间是否有空并邀你参加某个活动,在你尚未弄清楚邀请的具体内容之前,你没有必要答应一定参加。
D. 如果某人要求你在一个特定时间有空,还邀请你参与一个事件,在你尚未弄清楚之前,你没有必要把自己交托给他

A number of theories have been put forward about the possible causes of cancer.

A. 理论上早已预言了癌症的病因。
B. 人们就造成癌症的病因提出了不少理论。
C. 大量的理论已经用于解释引发癌症的原因。
D. 人们已用大量理论来研究癌症的原因。

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