According to the factory safety rules, all accidents _____ be reported to the safety officer.
| A．may | B．can | C．would | D．shall |
How long do you suppose it is ___________ he arrived there?
| A．when | B．before | C．after | D．since |
---Will you join us in the game?
---Thank you,_________ .
| A．but why not | B．but I’d rather not |
| C．and I won’t | D．and I’ll join |
So many years have passed and the terrifying accident is still ______in her mind.
| A．new | B．different | C．fresh | D．violent |
When Chinese people talk about American cities, the first_____ comes into their minds is San Francisco.
| A．city | B．one | C．that | D．of them |
Nearly all educators believe that a challenging situation can often _______ the best qualities of a person.
| A．bring up | B．bring about | C．bring forward | D．bring out |