超星 - Homework for Unit 4 - 查题吧

单选题

You have done your best; I have nothing to.

A. crisis
B. criticise
C. critical
D. critic

单选题

---Do you know anyone in Chicago?---No, but I'll make friends once.

A. I'm settled
B. I'll be settled
C. I've been settled
D. I had settled

单选题

He walked carefullyhe fall.

A. lest
B. unless
C. except
D. now that

单选题

Some plastics areand that is bad for the environment.

A. of good quality
B. of high quality
C. new
D. non-degradable

单选题

A car that only usesenergy and not fossil energy like petrol is very environmentally friendly.

A. sole
B. solar
C. only
D. rare

单选题

We areimproving the state of the environment by reducing the level of CO2 we produced.

A. luckily
B. carefully
C. happily
D. gradually

单选题

We moved to Londonwe could visit our friends more often.

A. even if
B. lest
C. so that
D. in case

单选题

You see the lighteningit happens, but you hear the thunder later.

A. the instant
B. for an instant
C. on an instant
D. in an instant

单选题

We'll visit England and Germany next yearwe have enough money.

A. unless
B. lest
C. provided
D. until

单选题

we go swimming every dayus a lot of good.

A. If ... do ...
B. If ... that ...
C. That ... do ...
D. That ... does ...

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