问题

Zhou Yang went on________ trip to Tibet. [ ]

A: a seven-days
B: a seven-day
C: seven day
D: seven-days

正确答案是：

同类题型

Now the city is _____ it used to be. [ ]

They are still very cautious about ______ side effect the new medicine will bring about, although the experts have tried it on about 2,000 patients.

The reason ________ he didn’t come was _______ he was ill

Would you mind ____ my pet dog while I’m away–Sure, no problem .

May I speak to Mr. Smith —Sorry, he . Can I take a message