问题

Tom, you won’t make much progress_________ you work really hard.—Ok, I will try my best.

A:if
B:though
C:unless
D:when;

正确答案是：

同类题型

Would you mind_______ the time_______ watching drama series

E-mail, as well as telephones, ______ an importantpart in daily communication.

a shame that you missedthe lecture on theBritish culture given by Thompson.— I _________ it, but I was busy preparing thecoming exam.

Turn the TV down, will you— _______—I asked you to turn the TV down.

The bookshop near our school_______ the whole day on Sunday.