题目内容

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

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

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

Before the age of the Internet, we used to () our holiday through travel agents.

A. book
B. having booked
C. booking
D. have booked

Since the new technilogy was introduced last month,we () in speeding up production.

A. succeed
B. succeeded
C. have succeeded
D. willsucceed

As a pubilc relation officier, you should know your customers () detail.

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

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