_____ is known to all is that effective measures should be taken to deal with the problem of the over-exploiting of our resources.
| A．What | B．It | C．As | D．Which |
.____studying Russian made his mother disappointed once again.
| A．Him meaning to give up | B．His meaning giving up |
| C．His meaning to give up | D．He meant to give up |
.Charlie,through his humour, one of the most popular child actors in England by his teens.
| A．became | B．had become | C．has become | D．becomes |
.The typhoon(台风) left,___a lot of damage to the island where we live.
| A．did | B．doing | C．to do | D．having done |
.An idea me it was very difficult for a woman to get medical training at that
time.
| A．hit to;what | B．hit;how | C．happened to;how | D．hit;that |
All the workers think it very necessary to safety regulations and workshop
rules.
| A．campaign | B．inspire | C．confuse | D．observe |