It is very important for us to _______and work hard.
| A．keep fit | B．keep fat |
| C．keeping fit | D．keeps fat |
When the firemen arrived， the fire had been_______.
| A．put up | B．put down | C．put away | D．put out |
--When are you going to tell the bad news to Jim?
--_______ he comes back.
| A．Unless | B．As soon as | C．Since | D．Though |
–Do you like basketball or soccer?
–_______. Soccer is too hard for me.
| A．Yes, I do | B．No, I don’t |
| C．Basketball | D．Soccer |
Qomolangma is _______ high _______ very few people can climb up to the top of it.
| A．so, that | B．enough, to |
| C．too, to | D．as, as |
–Whose is this purple scarf?
–It _______ be Mary’s. She always wears a purple scarf like this.
| A．must | B．can |
| C．mustn’t | D．can't |