No student ______go out of school after eleven o’clock at night without the teacher’s permission.
| A．will | B．must | C．may | D．shall |
I guess we've already talked about this before but I'll ask you again just
________.(2010·浙江)
| A．by nature | B．in return | C．in case | D．by chance |
．Life is too short to waste and too ________ to give up.
| A．expensive | B．fragile |
| C．precious | D．ordinary |
The law required that everyone ________ his car checked at least once a year.
| A．has | B．have | C．had | D．will have |
．Our teacher is very busy.He is ________ in working out a teaching plan.
| A．involve | B．involving |
| C．involved | D．to involve |
Beijing Man used fire for cooking food and also for light, warmth and ________
wild beasts.
| A．protected from | B．protection from |
| C．protecting from | D．to protect from |