第1题：
She()close contacts with the scientist for many years.
A、 maintained
B、 stayed
C、 claimed
第2题：
第3题：
We can conclude from this passage that ______.
A. many turtles die while swimming to shore
B. female turtles protect their babies
C. once turtles leave land, they never return to the sea
D. the job of laying eggs takes tremendous strength
第4题：
If your passenger vessel is fitted with a loudspeaker system，it must be tested at least once ______.
A.every week
B.a day
C.every trip
D.a watch or once a trip，whichever is shorter
第5题：
Once environmental damage __________, it takes many years for the system to recover.
A) has done B) is to do C) does D) is done
D is done
如果环境贝破坏，就会化肥很多年回复这个环境系统
第6题：
A、which
B、where
C、that
D、as
第7题：
But an event in my life when I was 17 years old changed my perspective on what it takes to be inspirational.
第8题：
A、many damages
B、a damage
C、much damages
D、much damage
第9题：
Edison invented the light bulb many years ago（改为被动语态）
The light bulb__________ __________by Edison many years ago．
第10题：