问题

The researchon the new flu virus vaccine is challenging and demanding Who do you think cando the job —______ mystudents have a try

A:for, at
B:to, at
C:to, by
D:for, by

正确答案是：

同类题型

My name is Robert， most of my friends call me Bob for short

3. I had a fear of height, and the higher I got, the ______ I felt.

_______ in the regulations that you should not tell other people the password of your e-mail account.

Li GuangYao, the father of Singapore , died of illness(因病逝世)____ the early morning _____ 23 March, 2015.

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