题目内容

I tend to get neverous when () to make a presentation to a large group of people.

A. be asked
B. asking
C. asked
D. ask

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We are sure they () this bridge by June next year.

A. complete
B. completed
C. hadcompleted
D. will havecompleted

Today many companies are engaged () the development of new technology.

A. to
B. in
C. over
D. for

With the help of their professor, these students will learn to program their robot to do () they wantto do.

A. whatever
B. wherever
C. whenever
D. whichever

I wrote a letter congratulating him () his appointment as the director of the department.

A. on
B. in
C. with
D. to

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