A foreign language like English is difficult to learn, so you ____________ work too hard.
| A．can’t | B．must | C．shouldn’t | D．ought to |
There are many other examples _______ the development of Chinese writing.
| A．reflect | B．which reflecting | C．reflecting | D．reflected |
Listen! His family must be quarrelling, _______?
| A．mustn’t it | B．isn’t it | C．aren’t they | D．needn’t they |
More than one _______ the people heart and soul.
| A．official has served | B．officials have served |
| C．official has served for | D．officials have served for |
This problem may lead to more serious ones if _______ unsolved.
| A．making | B．remained | C．keeping | D．left |
The Chinese language _______ many Western languages _______ it uses characters which have meanings and can stand alone as words.
| A．different from; in that | B．differs from; in which |
| C．differs from; in that | D．is different from; in which |