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 teacher told the student to go back ________ he sat.
#33167
A
to where
B
to which
C
the place where
D
where
. It’s a secret. Why don’t we go and talk about this somewhere quieter? _______, you know.
#34481
A
Once bitten, twice shy
B
Moneytalks
C
Walls have ears
D
Like father, like son
The life of a professional tennis player is tough ________ you never seem completely free to do _______ you like --- even in the off-season.
#31384
A
when; what
B
because; that
C
as; whatever
D
when; whatever
_______ we have planned ahead might change when we put it into practice.
#31209
A
Whatever
B
Whenever
C
Whoever
D
However