问题描述：
what ____hard work your mother is doing!
A./ B.a C.an D.the
选B对么?为什么?
The film will begin at four o'clock,Shall we meet at ____at the gate?
A.forty past three B.half past four
C.fifty to four D.four to four
这个应该怎么选?我选的是B,可是答案给的是D为什么我不对呢?
A./ B.a C.an D.the
选B对么?为什么?
The film will begin at four o'clock,Shall we meet at ____at the gate?
A.forty past three B.half past four
C.fifty to four D.four to four
这个应该怎么选?我选的是B,可是答案给的是D为什么我不对呢?
问题解答：
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