The average cost of a new house per square meter has _____ by 5% to ₤4000.
| A．sent up | B．come up | C．gone up | D．risen up |
“Is John coming by train?” “He should, but he _________ not. He likes driving his car.”
| A．must | B．can | C．need | D．may |
You _________ pay too much attention to your reading skill, as it is so important.
| A．cannot | B．shouldn’t | C．mustn’t | D．needn’t |
You _________ be right, but I don’t think you are.
| A．can | B．could | C．must | D．should |
“Do you think he is lazy?” “I _________ so once, but I don’t now.”
| A．may have thought | B．can have thought | C．may think | D．might think |
| A．may not be | B．won’t be | C．couldn’t be | D．mustn’t be |