—ImsorryIsteppedoutsideforasmo

—I'm sorry I stepped outside for a smoke. I was very tired.
—There is no________for this while you are on duty.

A．reason

B．excuse

C．cause

D．explanation

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More people will eat out in restaurants _____ they do today.

A．than

B．when

C．while

D．as

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_____ hard she tries, she can hardly avoid making mistakes in her homework.

A．Much

B．However

C．As

D．Although

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Poor _____ it may be, there is no place like home, _____ you may go.

A．as; wherever	B．though; whenever
C．in spite of; when	D．that; wherever

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The child was __ immediately after supper.

A．enough tired to go to bed	B．too tired to go to bed
C．so tired that he went to bed	D．very tired, he went to bed

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The history of nursing __ the history of man.

A．as old as

B．is old than

C．that is as old as

D．is as old as

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