问题
The new books are of great use, they _____ well and _____ already.
A:sell : sell out
B:sold : had sold out
C:sold : have sold out
D:sell : have been sold out
B:sold : had sold out
C:sold : have sold out
D:sell : have been sold out
正确答案是：
同类题型
When shall I pay the bill?—Don’t mind it, sir ________
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It’s me a lot of time to find out what I really want to do in the future.
May we leave the classroom now-No, you _______. You _______ to leave until the bell rings.