–Can I help you? –_________.
A. Thank you
B. Yes, please, I want a pen.
C. You’re welcome.
He kept writing the book _____ he was in great pain.
| A．because | B．if |
| C．unless | D．even though |
–Sam, could you please turn down the radio? Your sister _____ in her room.
--OK, Mum.
| A．sleeps | B．slept |
| C．is sleeping | D．was sleeping |
David’s dream is to go to the west of China and ______ an early childhood school there.
| A．clean up | B．look up |
| C．give up | D．set up |
—Don’t throw litter around. It _______ terrible in summer.
--Sorry, I won’t.
| A．smells | B．tastes |
| C．sounds | D．feels |
—Mum, must I stay there the whole day?
--No, you ______. You ______ come back after lunch, if you like.
| A．mustn’t; can | B．needn’t; must |
| C．needn’t; may | D．can’t;must |