第1题:
It is seriously polluted.
The air is very clear.
There are few cars and factories.
It remains what it was ten years ago.
第2题:
第3题:
have longer sleep periods after work
make the light darker than usual
try to re-set their “internal clock”
pay more attention to their work
第4题:
that
when
what
which
第5题:
It has the largest number of customers.
It is grateful for its employees’ efforts.
It is successful in the market place.
It charges the least for its services.
第6题:
第7题:
$5.
$10.
$15.
$20.
第8题:
In a post office.
In a bank.
In a big store.
In a hotel.
第9题:
to pay for their own medical care
to help to live on their low incomes
to improve the national health care service
to solve one of the important political problems
第10题:
She’s a secretary.
She’s a manager.
She’s an engineer.
She’s a teacher.