题目内容

Every means ____ tried but without any hope.

A. have been
B. is to be
C. are to be
D. has been

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The number of deer, mountain lions and tigers ____ much because people leave things as they are.

A. doesn’t change
B. don’t change
C. change
D. changed

请写出句子“Hungry and exhausted, the climbers returned.”中的无动词分句(verbless clause): ____。

请写出句子“I believe him to be innocent.”中的非限定分句(non-finite clause): ____。

In sentence “The children might have been playing in the garden.”, the verb phrase “might have been playing” is a complex verb phrase.

A. 对
B. 错