______ young people see and hear in the media helps them to figure out how the world works．
| A．Which | B．What | C．That | D．How |
It’s cold in here. We must have the fire day and night.
| A．burn | B．burns | C．burnt | D．burning |
---Can I tell my best friend about it?
---No. I don’t want anyone else to know. You _________ let it out.
| A．mustn’t | B．won’t | C．don’t have to | D．don’t need to |
--- Who’s the man giving the speech?
--- Well, if you ____ know, his name is Lyric.
| A．may | B．can | C．shall | D．must |
—I did not know you were good friends.
—You__________. I have known her since she moved here. You were abroad then.
| A．may have | B．needn’t have | C．couldn’t have | D．must have |
-----Is it good to look up every new word when I come across it in reading?
-----No. You _______ because you are likely to guess the meaning from the context.
| A．can’t | B．mustn’t | C．don’t have to | D．shouldn’t |