问题
Coach, can I continue with the training?—Sorry, you can’t________ you haven’t recovered from the knee injury[ ]
A: until
B: before
C: as
D: unless
B: before
C: as
D: unless
正确答案是：
同类题型
Must I park my car behind the building—No, you _______. You _______ park it there.
The old man watched the young boys playing _______ basketball with _______great interest .
Why shall we have a meeting this afternoon?— ______ the solution to the problem. [ ]
mposition is very good.—Well, at least it is＿＿＿theone I wrote last week.