our earth, or else it will be no longer fit for us to live on.
#65875
A
Protected
B
To protect
C
Protecting
D
Protect
推荐题目
To test eggs, _______ them in a bowl of water: if they float they’re bad, if they sink they’re good.
#66318
A
put
B
putting
C
to put
D
to be putting
---Jim, ______ miss the first bus.----OK, I_____.
#59373
A
don’t, will
B
doesn’t, will
C
don’t, won’t
D
doesn’t, won’t
__________ to the left at the crossroads, and you will see the railway station on your right.
#66047
A
Turning
B
If you turn
C
Turn
D
Having turned
______ terrible life the people in the mountains lived at that time！
#65950
A
What
B
What a
C
How
D
How a
—Could you please tell me how to get on well with my schoolmates?—________
#59378
A
Try to be confident and work hard.
B
Be helpful and friendly.
C
Choose the white dress. You look nice in white.
D
You should have a lot of money.