We went through a period_______ communications were very difficult in the countryside.
#33356
A
which
B
in which
C
whose
D
with which
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A good friend of mine from I was born showed up at my home right before I left for Beijing．
#80680
A
how
B
whom
C
when
D
which
Betty shows great interest in this poem now, but she thought it boring she read it.
#33234
A
at the first time
B
the first time
C
for the first time
D
at first
____ you have a chance , you might as well make full use of it.
#31874
A
Now that
B
After
C
Although
D
Even if