题目内容
When the door of happiness closes, another opens, but often we look so long at the closed door ________ we don't see the one which has been opened for us.
[ ]
A.which
B.that
C.as
D.when
答案:B
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题目内容
When the door of happiness closes, another opens, but often we look so long at the closed door ________ we don't see the one which has been opened for us.
A.which
B.that
C.as
D.when