问题补充:
Whom do you think Mary will into the matter instead of her?
A. have looked
B. have to look
C. have had looking
D. have look
答案:
A. have looked
B. have to look
C. have had looking
D. have look
解析:句意:你认为玛丽会让谁代替她调查这件事?这里使用了词组have sb do sth,因为这里用了疑问句,用whom对sb提问,所以have后面没有宾语,所以选D。