She didn′ t know __________ to express h

天天题库2019-12-17  2

问题 She didn′ t know __________ to express her ideas in English clearly in public.

选项 A.whichB.whyC.howD.what

答案C

解析考查疑问词与不定式结构。疑问词who,what,which,when,where和how后加不定式可构成一种特殊的不定式短语。它在句中可以用作主语、宾语、表语和双宾语等。本题是该结构作宾语的情况。故选C。
转载请注明原文地址:https://ti.zuoweng.com/ti/5xksKKKQ