Some young people these days just ______ go out of their homes to contact the real world．
| A．mustn’t | B．won’t | C．mightn’t | D．shouldn’t |
Help others whenever you can you’ll earn respect from others without difficulty.
| A．and | B．or | C．unless | D．but |
Expo 2010 Shanghai China offered wonderful opportunity for cross culture dialogues.
| A．a;/ | B．a ,the | C．/,the | D．the ,/ |
Only by working hard your dream of becoming a doctor.
| A．you can achieve | B．can you achieve | C．can you be achieved | D．you can recognize |
It was because of the bad weather _______ the football match had to be put off.
| A．so | B．so that | C．why | D．that |
Tom always prefers _________ rather than _______ a bike.
| A．walk; ride | B．walk; riding | C．to walk; ride | D．riding; to ride |