Mountain climbing ________ be very tiring, and many people feel sick ________ the atmosphere gets thinner.
#31554
A
may; while
B
can; as
C
must; though
D
should; for
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____ invited, I won’t take part in such kinds of parties.
#33463
A
Apart from
B
In spite of
C
Even if
D
Only if
______ more and more people may refer to the Internet for up-to-minute news, the newspaper will not disappear.
#32205
A
When
B
While
C
Since
D
As
I’m glad you’ve made great progress so far. Keep it up______ you must be successful.
#30637
A
and
B
while
C
so
D
or
—Are you ready for Spain?—Yes.I want the girls to experience that________ they are young.
#30059
A
while
B
until
C
if
D
before
Friends are angels who lift us to our feet _______________ our wings have trouble remembering how to fly.
#31723
A
unless
B
because
C
though
D
when