—How long may I keep the book?
—You ________ keep it for two weeks.
A. may B. must C. will
---Why do you look so sleepy today?
---I stayed up late last night. It’s too much for me to _____.
| A．stay awake | B．be calm |
| C．keep cool | D．get up |
---Look. Jim. What a mess your room is !
---Sorry， mom. I’ll _______ all my books and clothes _____ right now.
| A．take; away | B．take; out |
| C．put; away | D．put; out |
The shoes are much too small for him. They ______ be his.
| A．can’t | B．mustn’t |
| C．needn’t | D．have to |
Stop smoking,_______ you’ll get better soon.
| A．or | B．but | C．and | D．because |
He used to _____ much meat, but now he’s used to ______ fruits and vegetables.
| A．eat; eating | B．eating; eat |
| C．eat; eat | D．eating; eating |