＿＿＿＿ Sunday, the students are at home.
| A．Being | B．To be | C．It is | D．It being |
You can’t imagine that a well –behaved gentleman ______ be so rude to a lady.
| A．might | B．need | C．should | D．would |
— Write to me when you get home.
— __________.
| A．I must | B．I should | C．I will | D．I can |
I was really anxious about you. You _______ home without a word.
| A．mustn’t leave | B．shouldn’t have left | C．couldn’t have left | D．needn’t leave |
“Did Jim come？” “I don’t know. He _______ while I was out.”
| A．might have come | B．might come |
| C．mush have come | D．should have come |
“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 |