題目列表(包括答案和解析)
The factory opened ________ 1989.
[ ]
She won her first gold medal ________ 1991.
[ ]
He has worked in the factory______ five years ago．
A． for B． at C． since D． about
I've waited _________an hour and now I'm leaving.
[ ]
|
A ．since |
B ．in |
|
C ．at |
D ．for |
His grandpa has been ill ______ a few days.
[ ]
|
A ．in |
B ．since |
C ．at |
D ．for |
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