I don't know if he tomorrow．If he ,please tell me
| A．will come , will come |
| B．will come , comes |
| C．comes, comes |
| D．comes , will come |
If he ________harder , he will catch up with us soon .
| A． study | B．studies | C．will study | D．studied |
Beijing is one of the _________________ in the world today .
| A．busiest city | B．busy cities | C．busy city | D．busiest cities |
I don’t know if he __________ tomorrow . If he _______ here , I will call you .
| A．will come , comes | B．will come , will come |
| C．comes , will come | D．comes ,comes |
Can you __________________ other ways to solve this problem?
| A．use up | B．come up with | C．give up | D．make up |
There used to be a hospital , __________?
| A．didn’t there | B．isn’t there | C．wasn’t there | D．wasn’t it |