It’s necessary for human beings to breath _______ and plants can produce it.
#17259
A
CO2
B
H2
C
O2
D
N2
推荐题目
The people in western countries celebrate_______ by making pumpkin lanterns and wearing special costumes with masks.
#38825
A
Christmas
B
Halloween
C
Thanksgiving Day
D
New Year's Day
Which of the underlined parts is pronounced differently from the other three?
#16840
A
funny
B
uniform
C
subway
D
club
Xi Jinping paid his first visit to ______ in March, 2013.
#17089
A
South Africa
B
Russia
C
Tanzania
D
The Repulic of Congo
Children are having a good time in the park.
#17289
A
have fun
B
enjoy themselves
C
having fun
D
playing games
—Is there a hotel in the neighborhood, sir?—Yes, go down this road and turn right.
#17280
A
on the left
B
near here
C
on the right
D
in the front