He has got three brothers, ________ is a doctor.
| A．all of them | B．none of whom |
| C．all of whom | D．both of them |
It was ____ exciting news that more than ten students in a single school were admitted to Tsinghua University in the same year.
| A．one | B．an | C．/ | D．a |
____ the end of the performance did the audience get the chance to take photos with the respectable actor.
| A．At | B．By | C．Up to | D．Not until |
—Don t be so naughty! Be your _____.
—Got it.
| A．manners | B．age | C．behavior | D．politeness |
We should be very ________about giving our personal information to strangers.
| A．happy | B．outgoing | C．ready | D．cautious |
I’m familiar with you because your name ________in our yesterday’s conversation many times.
| A．mentioned | B．pointed out | C．came up | D．referred to |