摘要： His sister left home in 1998, and since. A. had not been heard of B. has not been heard of C. had not heard of D. has not heard of [答案]B. [解析]句意为:他的妹妹在1998年离开家.自从那时就没有音讯了.用现在完成时的否定结构.
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His sister left home in 1998, and ____since.
A. had not been heard of B. has not been heard of
C. had not heard of D. has not heard of
查看习题详情和答案>>His sister left home in 1998, and__________ since.
A. had not been heard of B. has not been heard of
C. had not heard of D. has not heard of
查看习题详情和答案>>His sister left home in 1998, and _______since.
A. had not been heard of B. has not been heard of
C. had not heard of D. has not heard of
查看习题详情和答案>>