问题
When is your art lesson? —At half _____ ten. [ ]
A: in
B: to
C: after
D:past
B: to
C: after
D:past
正确答案是：
同类题型
Having been in hospital for two months, _______he was going to catch up with his classmates.
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It worried her a bit _____________ her hair was turning grey.
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