She is so intelligent that she can________all the math problems．
| A．work out | B．hand out | C．give out | D．put out |
You should _______ the bus when it stops.
| A．get off | B．cut off |
| C．take off | D．put off |
We really don’t know ________ . Could you help us？
| A．how to do | B．what to do |
| C．to do what | D．to do how |
—— I think running is an easy way to keep healthy.
—— __________ , but Bill doesn’t think so.
| A．I disagree | B．I agree |
| C．I’m afraid not | D．I don't think so |
Don’t forget _________ your bed after you get up.
| A．making | B．to make |
| C．sweeping | D．to sweep |
—— Dad, could I go to a movie?
—— _____________. But don’t stay out late.
| A．Yes, you could | B．Yes, you can |
| C．No, you couldn’t | D．No, you can’t |