---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
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He walked carefullyhe fall.
A. lest
B. unless
C. except
D. now that
Some plastics areand that is bad for the environment.
A. of good quality
B. of high quality
C. new
D. non-degradable
A car that only usesenergy and not fossil energy like petrol is very environmentally friendly.
A. sole
B. solar
C. only
D. rare
We areimproving the state of the environment by reducing the level of CO2 we produced.
A. luckily
B. carefully
C. happily
D. gradually