How ___ I help them to understand when they won’t listen to me?
| A．can | B．would | C．may | D．must |
Last winter, many places of southern China were struck by heavy snowstorms, __________more than 120 people were killed.
| A．from which | B．for which | C．at which | D．in which |
I’d appreciate __________ if you could lend me a hand with my homework.
| A．it | B．so | C．that | D．you |
I __________ laughter at the sight of the funny actor.
| A．burst out | B．burst into | C．broken into | D．began with |
The scientist, __________ my father works, is about 50.
| A．on whom | B．to which | C．with which | D．with whom |
--- Hi, Torry, can I use your computer for a while this afternoon?
--- Sorry, __________.
| A．It’s repaired | B．It has been repaired |
| C．It’s being repaired | D．It had been repaired |