He was told that it would be at least three more months _____ he could recover and return to work.
| A．when |
| B．before |
| C．since |
| D．that |
----How beautiful the university is, Professor Wu.
----So it is. I ______ here for four years and my daughter is studying here too.
A. studied B. have studied C. was studied D. had studied
Welcome to our online mall! If you buy ______iphone4 here, you can get a watch for _____free.
| A．a; / | B．an; the | C．an; / | D．the; the |
—_______ for Beijing?
—Yes, and I’ll come back in two months.
| A．Have you left | B．Are you leaving | C．Do you leave | D．Did you leave |
Thank you for persuading my mother _______ the army.
| A．let me join | B．letting me join | C．to let me join | D．to let me to join |
—Does he know how to work out the problem?
—Yes, he has _______ a good idea to solve it.
| A．caught up with | B．kept up with | C．come up with | D．put up with |