We have a growing population and________we need more food.
| A．even | B．besides | C．yet | D．therefore |
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 |
The doctor strongly recommended that he ________ a holiday.
| A．would take | B．took |
| C．had taken | D．take |
Mr.Smith, there's a man at the front door who says he has news for you ________
vital importance.
| A．of | B．with | C．in | D．from |