问题

It’s a long time _ I saw you last.—Yes, and what a pity it is now that it will be a long time ___ we see each other again

A:before; since
B:since; when
C:since; before
D:when; before

正确答案是：

同类题型

He _______ the best person you had been expecting forthe job, but who else _______

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My mother is so busy that she has a lot of problems to ___________.

Terra, you shouldn’t be so___________. You always leave your things here and there. —Sorry, mom. I’ll putthem away soon.

The workers want us ________ together with them.[ ]