( )1. Now mobile phones are not so expensive as they _______ to be.
A. use B. used C. are used D. were used
( )2. Would you please ask him _______ a dictionary? I want to look up some new words.
A. borrow me B. to borrow me C. to lend me D. lend me
( )3. They felt wet and cold. So they made a fire _______.
A. warm up themselves B. to warm up themselves
C. keep themselves warm D. to keep themselves warm
( )4. — ________ will she fly to Beijing?
— In three days.
A. How soon B. How long C. How many days D. How often
( )5. You are not allowed (允许) to play basketball until your homework ________.
A. is going to finish B. will be finished C. finishes D. is finished