More and more carbon dioxide is being released into the air，________the more severe global warming effects.
#89528
A
contributed to
B
to contribute to
C
contributing to
D
to be contributed to
推荐题目
The pop star walked out of the stage, ______ her hands to her crazy fans.
#94321
A
waving
B
was waving
C
waved
D
to wave
Days of snowstorms have left the city under thick layers of ice and some 50,000 homes without power．
#88623
A
to be trapped
B
trapped
C
having trapped
D
being trapped
The football player felt guilty because he said some really cruel things, but actually he wouldn’t stand _______their team lose.
#97189
A
seeing
B
to see
C
having seen
D
to have seen
It is careless ___ such a mistake.
#98664
A
of you to make
B
of your making
C
for you to make
D
for your making