问题
I can’t remember what he looked like when we met __________the first time.[ ]
A: in
B: on
C: at
D:for
B: on
C: at
D:for
正确答案是：
同类题型
_____haveyou practiced skating? —For five years.[ ]
You will want two trees about ten feet apart, from ______ to suspend your tent.
Parents always _______ great improvement in study ______their children.
When did Mr. Smith come here? —________ nine o’clock yesterday morning. [ ]
Jack must be helping his grandma to water the flowers,______?