May we leave the classroom now? No, you _____. You_____ to leave until the bell rings.
| A．mustn’t, are allowed | B．don’t have to , are supposed |
| C．needn’t , aren’t allowed | D．can’t , aren’t supposed |
– __________ milk do you need for the milk shake?
– Well, one cup is probably enough.
| A．How long | B．How many | C．How much | D．How often |
If it_______ rain tomorrow, I’ll go climbing with my classmates.
| A．will | B．won’t | C．didn’t | D．doesn’t |
Pudong International Airport is one of_______ airports in the world.
| A．big | B．bigger | C．the bigger | D．the biggest |
Don’t jump to a conclusion! Let’s _______ the problem first.
| A．discussion | B．discussing | C．discuss | D．to discuss |
They were all very tired,but ________of them took a test.
| A．everybody | B．both | C．neither | D．none |