—Itstheoffice！Soyouknoweatingi

—It's the office！So you ________ know eating is not allowed here.
—Oh，sorry.

A．must

B．will

C．may

D．need

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After ___ more chatter, the lady returned home.

A．a good deal of

B．a lot of

C．a good deal

D．a good many

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Why! I have nothing to confess._____ you want me to say?

A．What is it that

B．What it is that

C．How is it that

D．How it is that

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---I called you last night, but nobody answered.
---Oh, I usually___off my cellphone by 9:00 p.m.

A．switched

B．have switched

C．switch

D．had switched

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---You aren’t looking well. Anything the matter?
---I’ve been surfing the net too long. I’m a bit tired.I can hold on,____.

A．though

B．yet

C．besides

D．therefore

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All of the things there are inexpensive, with prices ________ from about $1 to $10.

A．ranging

B．changing

C．distinguishing

D．differing

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