--- Mum, I am feeling tired and sleepy now.
--- You so late last night.
| A．couldn’t have stayed up | B．mustn’t have stayed up |
| C．shouldn’t have stayed up | D．needn’t have stayed up |
Over two thirds of the population were believed to have no ______ to the health care in the west rural area in China.
| A．aid | B．basis | C．belief | D．access |
You should look _______ into the matter to get more information about it.
| A．farther | B．far | C．farthest | D．further |
They keys were __________ to our neighbours during our absence.
| A．given out | B．given away | C．given over | D．given up |
–Are you a teacher?
--No, but I ________.
| A．used to | B．was used to | C．used to be | D．used to do |
–You speak very good Chinese.
--Thanks. I _______ it for 4 years before I came to China.
| A．studied | B．study | C．was studying | D．had studied |