Lily as well as her sisters ____ Chinese in China.
A. are studying
B. have studied
C. studies
D. study
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Every means ____ tried but without any hope.
A. have been
B. is to be
C. are to be
D. has been
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): ____。