The matter was much than everyone had expected.
| A．serious | B．seriously | C．more serious | D．more seriously |
“______ do you exercise?” Three times a week.”
| A．How long | B．How often | C．How far | D．How many |
A: May I go out to play football, Dad?
B: No, you ________. You must finish your homework first.
| A．may not | B．needn’t | C．shouldn’t | D．mustn’t |
In China when the traffic light is red, you ________ cross the road.
| A．need | B．should | C．mustn’t | D．must |
Bring a map of China because you _______ want to travel around.
| A． may | B．must | C．need | D．can |
What ______ at seven yesterday morning?
| A．is she doing | B．was she doing | C．did she do | D．does she do |