________________, they couldn’t make their teacher change her mind.
| A．Whatever hard they try |
| B．No matter how they tried hard |
| C．As they tried hard |
| D．Hard as they tried |
The weather turned out to be fine yesterday. I __________ the trouble to carry my umbrella with me.
| A．should have taken | B．could have taken | C．needn’t have taken | D．mustn’t have taken |
You know he is not going to let us leave early if we __________ get the work done.
| A．can’t | B．may not | C．shouldn’t | D．mustn’t |
—Is Jack on duty today?—It __________ be him. It’s his turn tomorrow.
| A．mustn’t | B．won’t | C．can’t | D．needn’t |
— Must he come to sign this paper himself?— Yes, he __________.
| A．need | B．must | C．may | D．will |
— What’s the name?— Khulaifi. __________ I spell that for you?
| A．Shall | B．Would | C．Can | D．Might |