They dug ,then put the box in it.
| A．a three feet deep hole | B．a hole of three feet |
| C．a three feet deep hole | D．a hole of three feet deep |
The boy wanted to ride his bicycle in the street, but his mother told him _____.
| A．not to | B．couldn’t | C．not do it | D．do not to |
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 |