Carbon dioxide(CO2)_______ from burning fuels is the most common of the so-called greenhouse gases.
#91467
A
producing
B
having been produced
C
to be produced
D
produced
推荐题目
______ when to leave, I could only stay at home, _____ nothing.
#93935
A
Knowing not; done
B
Not having known; doing
C
Having not known; done
D
Not knowing; doing
Do you have any difficulty ________?
#96658
A
on listening
B
to listening
C
for listening
D
in listening
Neil Armstrong was the first man ______ on the moon in July 1969.
#94250
A
landing
B
landed
C
to land
D
lands
_________ the right kind of training , these teenage soccer players may one day grew the international stars．
#97557
A
Giving
B
Having given
C
To give
D
Given
A few days after the interview, I received a letter me admission to the university.
#96697
A
having offered
B
offered
C
offering
D
to be offered