The woman was about to open the door _______ she heard a strange sound from inside.
#32259
A
as
B
while
C
when
D
then
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The hungry man eats his food _______he hadn ' t eaten for a week.
#32409
A
as if
B
even though
C
such as
D
like as
There are many sports lovers in his office.Some love climbing, ___ others enjoy fishing.
#80400
A
or
B
for
C
while
D
so
Although he was in poor health, Robert succeeded other more famous engineers failed.
#30585
A
which
B
that
C
what
D
where
____ we get on well with a number of people , we are usually friends with only a very few．
#31752
A
As
B
Once
C
Before
D
While
Today, we’ll discuss a number of cases ____parents have much difficulty in communicating with their children.
#32390
A
which
B
that
C
where
D
why