Most birds find it safe to sleep in the trees, but ____ they have eggs or young chicks, they don’t use a nest.
#79977
A
why
B
how
C
unless
D
where
推荐题目
The young man couldn’t afford a new car _______, he bought a used one.
#32897
A
Besides
B
Otherwise
C
Instead
D
Still
We need some more facts and figures __________ we take the final decision.
#31598
A
since
B
before
C
after
D
until
What impressed the visitors deeply was ______ the workers made with their hands.
#31291
A
what
B
that
C
how
D
which
You’d better take your coat with you __________ it becomes colder.
#33973
A
in case
B
so that
C
even if
D
as if
