_______ a boarding school would help students cultivate (培养) their independence while being away from their parents.
Pieces of bamboo or wood ________ books between 2nd and 5th century AD.
A. used to formedB. used to form
C. were used to formD. used to beforming
Washing machines made by China have won ______worldwide attention and Haier has become _____popular name.
| A．a; the | B．/; a | C．/;the | D．the; a |
Having sent several mails to apply for jobs, Susan waited for a reply, but ___ came.
| A．nobody | B．nothing | C．none | D．neither |
— What are you going to do this weekend?
— _____. If time permits, I may go to Shanghai with my friends.
| A．Don't mention it | B．It doesn't matter |
| C．Forget it | D．It depends |
We ______ the difficulty together, but why didn’t you tell me?
| A．should face | B．might face |
| C．could have faced | D．must have faced |