—_____chapter in Oxford English often consists of four parts．—That’s right．And this chapter mainly talks about _____environmental problems．
#34575
A
The；an
B
An；the
C
the；the
D
A；the
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Teenagers should learn to protect (保护) ______from all kinds of dangers.
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A
them
B
they
C
their
D
themselves
There’s _____ “h” in _____ word “hour” and _____ hour has sixty minutes.
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A
an; the; an
B
the; the; an
C
a; an; an
D
a; the; a
—What cold weather！—Yes. But it’s unusual experience for us, we normally live in a hot place.
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A
/; a
B
a; an
C
/ ; an
D
a; the