It was probably _______ the wrong operation(操作) of the pilot that caused the pla

题型：不详难度：来源：

It was probably _______ the wrong operation(操作) of the pilot that caused the plane to crash.

A．because of

B．because

C．as a result

D．

答案

解析

略

举一反三

He thinks so highly of the movie Avatar that he thinks it is worth
seeing ______ second time.

A．the

B．a

C．the other

D．other

题型：不详难度：| 查看答案

—Thank you for offering me so much advice on English learning, Tom.
—_______ .

A．With pleasure	B．It’s all right
C．It’s my pleasure	D．It’s nice to say so

题型：不详难度：| 查看答案

Einstein’s theory, which was doubted by most scientists at first___out to be correct in the end.

A．proved

B．was proved

C．turned

D．tested

题型：不详难度：| 查看答案

The how-to book can be of help to ______ wants to do the job.

A．who

B．whomever

C．no matter who

D．whoever

题型：不详难度：| 查看答案

_______ a certain doubt among the people as to the practical value of the project.

A．It has

B．They have

C．It remains

D．There remains

题型：不详难度：| 查看答案