As we all know, it’s not polite to keep others _____ for a long time.
| A．wait | B．waited | C．to wait | D．waiting |
It _____ four years since we ______to learn English.
| A．Is , begin | B．has been , began | C．has, been | D．had been ,began |
----Have you finished writing the letter_______?
----Not ______
| A．just , already | B．already , just | C．ever , just | D．yet, yet |
He’s gone to the library ,_______ he ?
| A．isn’t | B．doesn’t | C．hasn’t | D．wasn’t |
---Did you get there by _____bike?
--- No, I took _____taxi.
| A．a, a | B．/,a | C．the , the | D．a , the |
He’ll phone you as soon as he ________ Beijing .
| A．reaches to | B．arrives in | C．will reach | D．will arrive |