Children’s brains can’t develop properly_______ they lack protein(蛋白质).
#73274
A
when
B
since
C
because
D
unless
推荐题目
After living in Pairs for fifty years he returned to the small town ______ he grew up as a child.
#71747
A
which
B
where
C
that
D
when
The part in the film Rio _______ the two birds escaped from the crashing plane made some of the audience give a cry.
#69034
A
which
B
who
C
where
D
whom
The small mountain village we spent our holiday last month lies in is now part of Hubei .
#71686
A
which where
B
where, what
C
that , which
D
when , which