What surprised me a lot was that he don’t know _____ the difference “tell”and “ask” lay.
A. What
B. that
C. where
D. which
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--What should I wear to his wedding party?--Dress______you like.
A. What
B. however
C. whatever
D. how
When I got to the checkout counter, I realized I didn’t have enough money, so I kept ______ I really needed and left the rest.
A. what
B. which
C. that
D. this
When you rewrite the paragraph, I advise you to leave out ________ is thought unnecessary or misleading.
A. what
B. that
C. these
D. which
对于渗流流速大于600m/d或者受温度变化影响的裂缝,不论其开度如何,均宜采用( )处理
A. 劈裂灌浆
B. 帷幕灌浆
C. 化学灌浆
D. 水泥灌浆