So difficult _____ it to adjust to an English-speaking environment that he determined to learn English hard.
A.he has felt | B.has he felt | C.he did feel | D.did he feel |
There’s no light on — they __________ be at home.
A.can’t | B.mustn’t |
C.needn’t | D.shouldn’t |
— Could I have a word with you, mum?
— Oh dear, if you __________.
A.can | B.must |
C.may | D.should |
—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 |
As you worked late yesterday, you __________ have come this morning.
A.mayn’t | B.can’t |
C.mustn’t | D.needn’t |
— Must he come to sign this paper himself?
— Yes, he __________.
A.need | B.must |
C.may | D.will |