Most birds find it safe to sleep in the trees, but ______ they have eggs or young chicks, they don’t use a nest.
#33314
A
why
B
how
C
where
D
unless
推荐题目
Of all the books on the desk, _____is of any use for our study.
#30802
A
no one
B
nothing
C
none
D
neither
Our attitude towards life is________makes the difference between our being happy or not.
#31045
A
that
B
whether
C
what
D
which
Israel was created as a homeland for homeless Jews after World War Ⅱ. However, the creation of Israel in ________ used to be Palestine left many Palestinians homeless.
#30342
A
what
B
which
C
where
D
that
It is the fact ______he doesn’t know his own birthday ______surprises us all.
#31911
A
which; which
B
that; that
C
which; that
D
that; which