Many human activities also _______carbon gases, which will result in global warming.
#12277
A
put off
B
send off
C
let off
D
set off
推荐题目
We tried to ring you back，Bryan，but we think we ________ your number incorrectly.
#11065
A
looked up
B
got through
C
took down
D
worked out
Some people are good at _____ voices on the phone while others ______.
#12263
A
knowing; aren’t
B
recognizing; don’t
C
knowing; don’t
D
recognizing; aren’t
Messi, only 25, has won his ______ as one of the world’s greatest soccer player.
#11782
A
reputation
B
achievement
C
contribution
D
civilization
He made up his mind to devote all he could to _______the poor.
#12480
A
help
B
helping
C
helped
D
helps