---You look very healthy. ________do you exercise?
-----I exercise three times a week.
| A．How often | B．How many | C．How much | D．How soon |
Why ________come and play basketball with us?
| A．not you | B．don’t | C．not to | D．Not |
－— I’m worried about the exam tomorrow, mum.
— ! Believe in yourself, dear.
A. Take it easy
B. Be careful
C. It’s a joke
－How long do you usually do your homework every day?
－It usually _______ me more than two hours to finish it.
A. costs B. pays C. takes
－I am sorry to step on your feet!
－_________ .
A. Good luck B. Don’t say that C. Never mind
－When are you going to tell the bad news to Kate?
－I’ll do it __________she comes back.
A. while B. as soon as C. until