—May I smoke here?
—Choose a seat in the smoking section, if you ________.
| A．should | B．must | C．can | D．may |
— I hate talking with that guy. Look, he is coming. What should I do?
— Don’t speak until ____.
| A．speaking | B．spoken to | C．spoken | D．speaking to |
I hear Mr. Smith was writing a story last year and he still ____.
| A．do | B．does | C．is | D．am |
— Why didn’t you come to Mike’s birthday party yesterday?
— Well, I ____, but I forgot it.
| A．should | B．must | C．should have | D．must have |
The big earthquake is reported to have ____ more than 4,000 people homeless.
| A．remained | B．had | C．brought | D．left |
You have made a few spelling mistakes in your composition, but ____, it is fairly good.
| A．on the whole | B．generally speaking |
| C．above all | D．on one hand |