單項選擇題Every precaution must be taken to avoid ().

A.sparking being taking place
B.to spark taking place
C.sparking to be taken place
D.sparking taking place


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1.單項選擇題It is obvious that the expansion of the water ()the increase of its temperature.

A.is due to
B.dues to
C.is because
D.is for

2.單項選擇題An engineer, together with some motormen ()to help in the repair work.

A.send
B.sends
C.was sent
D.were sent

3.單項選擇題If there are () in the repair work, please come to our duty engineer at once.

A.any problem
B.some problem
C.any problems
D.some problems

4.單項選擇題If the surveyors ()yesterday, they would have finished the survey work.

A.did not interrupt
B.were not interrupted
C.had not interrupted
D.had not been interrupted

5.單項選擇題Our company has built a new ship in Hamburg and I am going to fly there to ().

A.hand it over
B.take it over
C.carry it over
D.carry it out