Children’s brains can’t develop properly_______ they lack protein(蛋白质).
#73274
A
when
B
since
C
because
D
unless
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The man was walking along the street he stopped and looked as if whether he was going in the right direction.
#68945
A
when; seeing
B
when; to see
C
while; seeing
D
while; to see
They have no idea at all______.
#72723
A
where he has gone
B
where did he go
C
which place he has gone
D
where has he gone
You can find whatever you need at the shopping centre, ________ is always busy at the weekend.
#74353
A
that
B
where
C
what
D
which
Philips won 8 gold medals at the Beijing Olympic Games, __________astonished the world.
#68739
A
that
B
which
C
what
D
who