-- Come on, please give me some ideas about the project.
-- sorry, with so much work _____ my mind, I almost break down.
| A．filled | B．filling | C．to fill | D．being filled |
—How’s your tour around the North Lake? Is it beautiful?
—It ________ be, but it is now heavily polluted.
| A．will | B．would | C．should | D．must |
John promised his doctor he _____ not smoke and he has never smoked ever since.
| A．might | B．should | C．could | D．would |
According to the air traffic rules, you ___ switch off your mobile phone before boarding.
| A．may | B．can | C．would | D．should |
When I was young, I was told that I ______ play with matches
| A．wouldn't | B．needn't | C．mustn't | D．daren't |
-What sort of house do you want to have? Something big?
--Well, it ______ be big--that's not important.
| A．mustn't | B．needn't | C．can't | D．won't |