THE (A) WARMING OF THE EARTH, WHICH IS PRIMARILY(B) CAUSED BY THE ACCU...
Câu 1 (NB):
The
(A)
warming of the Earth, which is primarily
(B)
caused by the accumulation
of gases,
(C)
are known as
(D)
the greenhouse effect.
A.
warming
B.
caused
C.
are
D.
the