Mother was busy washing dishes ________________ Father was watching TV．
#30098
A
until
B
if
C
since
D
while
推荐题目
Wind power is an ancient source of energy _____ we may return in the near future.
#33026
A
to which
B
by which
C
from which
D
on which
The government has taken some measures to reconstruct the earthquake-hit areas, but it must be some time ________ everything returns to normal.
#32572
A
since
B
after
C
unless
D
before
Evidence has been piled up drinking water before breakfast is good for our health.
#31946
A
what
B
which
C
if
D
that
I was close to being killed the other day. A car passed me at______ I thought was a dangerous speed.
#32101
A
as
B
which
C
what
D
That
________ he can work abroad next year will depend on his parents' will.
#30304
A
That
B
When
C
What
D
Whether