题目内容
The doctor has done ________ help the patient.
[ ]
A.what he could
B.what he could to
C.all which he would do to
D.all what he could to
答案:B
解析:
提示:
解析:
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【巧解导析】从句中省略了谓语动词do,to help…为目的状语,故A不正确;all为先行词,关系代词只能用that,故C,D也不正确. |
提示:
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【巧解点悟】what he could为省略了动词do的宾语从句.要熟记此类句型. |
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