There are ________ floors in the mall and on the _____ floor there are many clothes shops.
My watch is three minutes slow. What about ______?
Hi!Amy, you didn’t come to my party last night, I just wonder ______last night.A. Where are you B. where you are C. where were you D where you were
____the afternoon of June 2nd,many foreigners(外国人) arrived ____Shanghai.
—Do you know sound travels very fast? 一Yes. But light travels _________ sound.
There are millions of websites on the Internet and there _________ a lot of useful ________ on the websites.