—Did your father come back early last night?—Yes. It was not yet eight o’clock _______ he arrived home.
#67534
A
before
B
when
C
that
D
until
推荐题目
____ the flight to Beijing will be delayed is ____ I’m especially worried about.
#69040
A
If; what
B
Whether; that
C
When; that
D
Whether; what
Do you have any idea   that makes The Voice of China so popular? 
#67368
A
what is it
B
what it is
C
how it is
D
how is it
The river, ____ are covered with trees, is very long.
#73086
A
which banks
B
of which banks
C
whose the banks
D
the banks of which