--- How many hours do they exercise every day?
----________.
A. Twice a day B. Often C. Two
I find _________difficult to work with the man.
| A．it | B．me | C．that | D．him |
It _________ her half a year to learn how to drive.
| A．cost | B．took | C．spent | D．paid |
–Kate, do you know__________it is from here to the gym.
–About twenty minutes’ walk.
| A．How far | B．how long | C．How soon | D．How often |
After a long walk, the girl felt very __________.
| A．happy | B．tired | C．angry | D．relaxed |
Though it was late, __________ he went on with his work.
| A．and | B．but | C．/ | D．so |