题目内容

【B7】

A. close
B. alert
C. detailed
D. intensive

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A．calls forB．calls outC．calls uponD．calls up

A. calls for
B. calls out
C. calls upon
D. calls up

【B1】

A. since
B. unless
C. as
D. because

【B14】

A. mission
B. research
C. action
D. task

______ enough time and money, the scientists would have been able to discover more in this

A. Giving
B. To give
C. Given
D. Being given