He spent every minute he could _____ spoken English.
| A．practise。m | B．to practise |
| C．practising。m | D．practised |
—Has your father got up?
—Sorry, I’m not sure. He __________ got up. Please go and see for yourself.
| A．must have | B．can’t have | C．would have | D．might have |
－You must say sorry to Mary, Jack.
－Why ________ I say sorry to her? It’s her who hurt me first.
| A．should | B．would | C．could | D．might |
—Why didn’t you put your cellphone in your overcoat pocket?
—I ________, but I was afraid it would be stolen.
| A．had put | B．put | C．would have | D．could have |
—Is there a fog in the evening ?
—There________be . I’ll make a phone call to find it out .
| A．must | B．would | C．will | D．might |
“Look at these tracks. It _______ be a wolf.” “Don’t be so sure. I think it _______ be a fox.”
| A．must; could | B．may; might |
| C．need; must | D．could; need |