What difficulty will you have ____ people when you stay in a foreign country?
#89450
A
understand
B
understanding
C
to understand
D
understood
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To answer correctly is more important than _____.
#98929
A
that you finish quickly
B
finishing quickly
C
to finish quickly
D
finish quickly
As we all know,________, the pollution will get worse and worse.
#93666
A
not if carefully dealt with
B
until not carefully dealt with
C
if not carefully dealt with
D
when not carefully dealt with
The doctors did all they the sick man back to life.
#99012
A
could bring
B
could to bring
C
could bringing
D
cuold to bringing
—I have been waiting for you so long. —Sorry, I have been in the library, _______ my friend look for some books.
#94750
A
helped
B
helping
C
to help
D
help