Most birds find it safe to sleep in the trees,but_______they have eggs or young chicks,they don’t use a nest.
#71783
A
why
B
how
C
unless
D
where
推荐题目
Can you make sure ______the gold ring?
#72721
A
where Alice had put
B
where had Alice put
C
where Alice has put
D
where has Alice put
We’ll have to finish the job, _________.
#69693
A
long it takes however
B
it takes however long
C
long however it takes
D
however long it takes