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/T
D:unless

正确答案是：

同类题型

want to book tickets for the 2012Olympic Games, just call 60952012. It _____be simpler.

May we leave the classroomnow — No, you ____________ . You____________ to leave before the bell rings.

I went along thinking of nothing________, only looking at things around me.[ ]

eme, I wonder if you can help me—Sure._______

Show your ID card, ________ you won’t buy the ticket.