问题

___ pay Tom a visit, but I am notsure whether I will have time this Sunday
A:No; before
B:Yes; when
C:Yes; that
D:No; until
B:Yes; when
C:Yes; that
D:No; until
正确答案是:
同类题型
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We ’d better discuss everything _____ before we work out the plan.
What hermost was that nobody had even bothered to tell her about the changed timetable