Elbert Einstein, for ______ life had once been very hard, was successful later in science .
#73276
A
whom
B
whose
C
which
D
his
推荐题目
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
_____ books you have borrowed from the library should be returned in two weeks’ time.
#68832
A
Whatever
B
However
C
No matter what
D
What
These shoes look very good. I wonder _______.
#72184
A
how much cost they are
B
how much do they cost
C
how much they cost
D
how much are they cost
Evdence has been found through years of study children’s early sleeping problem are likely to continue when they grow up.
#68385
A
why
B
how
C
whether
D
that
While __________ for the bus, I happened to come across my childhood friend, Tom.
#68214
A
waited
B
wait
C
waiting
D
to wait