After walking in the Shanghai World Expo for a whole day, my legs ____ under me and I couldn’t walk any farther.
| A．gave up | B．gave out |
| C．gave in | D．gave away |
The girls burst out laughing when I began to make a speech, —__________，of course, made me feel embarrassed.
| A．which | B．what |
| C．that | D．why |
—I have got a headache.
—__________. You have been working in front of computer too long.
| A．No way | B．No problem |
| C．No wonder | D．Not yet |
My parents would have come to see you if it had been possible, but they __________ so busy.
| A．were | B．had been |
| C．have been | D．would be |
The news came as quite a shock to us __________ a ship with 82 passengers on board sank near the north coast.
| A．what | B．that |
| C．when | D．where |
—The Internet is amazing, isn't it?
—Yes. Just __________ it into a socket and you are instantlyconnected to the rest of the world.
| A．to plug | B．plug |
| C．plugging | D．plugged |