问题描述：
in the past the big clock 百度知道
新概念3册第二课开头有our vicar is always raising money for ..(be always doing)意指持续的做,但是该课后练习第4题,In the past the big clock ___ the hours.B.always struck C.was always striking.
这题的答案是B,既然有BE ALWAYS DOING,为什么IN THE PAST后不能有 was always doing
新概念3册第二课开头有our vicar is always raising money for ..(be always doing)意指持续的做,但是该课后练习第4题,In the past the big clock ___ the hours.B.always struck C.was always striking.
这题的答案是B,既然有BE ALWAYS DOING,为什么IN THE PAST后不能有 was always doing
问题解答：
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