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【单选题】

() my return, I learned that Professor Smith had been at the Museum and would not be back for several hours.

A.
At
B.
With
C.
On
D.
During
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参考答案:
参考解析:
.
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举一反三

【单选题】That () out to me at the very beginning.

A.
ought to be pointed
B.
ought to point
C.
ought to have been pointed
D.
ought to have pointed

【单选题】Late-night Drinking Coffee lovers beware. Having a quick "pick-me-up" cup of coffee1 late in the day will play havoc with your sleep. As well as being a stimulant, caffeine interrupts the flow of me...

A.
There are more enzymes in decaf drinkers’ urine sample.
B.
There are more melatonin concentrations in caffeine drinkers’ urine sample.
C.
Decaf drinkers produce less melatonin.
D.
Caffeine drinkers produce less sleep hormone.

【单选题】Passage ThreeQuestions 33 to 35 are based on the passage you have just heard.

A.
To help older politicians get elected.
B.
To practice their law knowledge,
C.
To prepare for their own future elections.
D.
To find a job in the political club.

【单选题】He () in Japan as he left by boat last month.

A.
ought to arrive
B.
ought to have arrived
C.
should arrive
D.
must arrive