Playing football and watching TV _____ both interesting.
| A．were | B．was | C．are | D．is |
．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 |
The doctor strongly recommended that he ________ a holiday.
| A．would take | B．took |
| C．had taken | D．take |