单项选择题

______ her help, we couldn't have finished the work on time.

A. Had it not been for
B. If there was not
C. Was there not
D. If there were not
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单项选择题
______ than they started to work.
A. No sooner they had got to the plant
B. No sooner had they got to the plant
C. As soon as they had got to the plant
D. When they had got to the plant
单项选择题
Iceland lies far north in the Atlantic, with its northernmost tip actually ______ the Arctic Circle.
A. touched
B. touches
C. touching
D. being touched
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