單項選擇題Sales went down （） difficult trading conditions.

A.because
B.thanks to
C.since
D.due to


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1.單項選擇題If there were fewer management staff, more work （）.

A.would be done
B.will be done
C.would have be done
D.should be done

2.單項選擇題Having been familiar with his ability, （）.

A.the manager was assigned a challenging task
B.the manager assign a challenging task
C.the board assigned him a challenging task
D.a challenging task was assigned to the manager

3.單項選擇題There are approximately 500 （） now in operation in the United States.

A.savings banks
B.saving bank
C.saving banks
D.savings bank

5.單項選擇題When you write, （） all the necessary information.

A.remembering to include
B.remember including
C.remember and include
D.remember to include