Do you have any problems if you ______ five minutes to read?—Well, I’m thinking about the new words. There are too many.

As students, we should work hard and do ________ best to realize our dreams.

How cool the iPhone5s is !—In our shop it_____ very well now. Get one before it________out.

Guess, how much does it cost? —I think it costs15 and 20 dollars. [ ]

Have you________ Betty yet?—Not really．She won’t forgive me for having told her lies．