A. to not conductB. not to conduct

C. to not conductingD. not to conducting

—Yes, They are used ________ at meals.

A．to talkB．to talking

C．to not talkingD．not to talk

A. thatB. whetherC. how D. why

【题目】He is eager to achieve success, but ________， he doesn't want to work too hard.
A.for one thing
B.on the other hand
C.on the contrary
D.as a result

【题目】You'd better go there by train.The train ticket is________the airplane ticket.
A.as cheap three times as
B.as three times cheap as
C.three times cheaper than
D.cheaper three times than

A. mustB. canC. need D. may

【题目】—Children today find it hard to focus on study.
—Exactly，as they________so many fun things to do.
A.found
B.have found
C.had found
D.will find

A．anyoneB．someoneC．whoever D．no matter who

A．that; areB．what; was

C．that; isD．what; were

【题目】A good many things in the world cannot be considered and valued________money.
A.in terms of
B.in short of
C.in charge of
D.in case of