Ever since their quarrel, there has been an unpleasant in the office.
| A．circumstance | B．surroundings | C．condition | D．atmosphere |
A girl calling herself Mary is waiting outside; _____ she come in now?
| A．Need | B．Must | C．Will | D．Shall |
Many Chinese like watching People Who Moved China, which honors those _____ contributions should be remembered and learned from.
| A．whose | B．who | C．that | D．Their |
— What has _____ my dictionary? I can’t find it.
— Don’t you forget you’ve lent it to Lucy?
| A．become of | B．resulted in | C．brought about | D．taken place |
_____ for the young man to spit in the subway!
| A．How bad manners it is | B．How bad manners they are |
| C．What bad manners they are | D．What bad manners it is |
Difficult _____ in practice, this new technique hasn’t been applied.
| A．operated | B．to be operated | C．operating | D．to operate |