Her sister left home in1998, and       since.
#101660
A
had not been heard of
B
has not been heard of
C
had not heard of
D
has been heard of
推荐题目
These days, we _____ for our final exams.
#102111
A
are prepared
B
have prepared
C
are preparing
D
will prepare
Egg prices usually  ________       in spring when they are most plentiful.
#99486
A
are dropping
B
drop
C
have dropped
D
will drop
Mr. Black _____ for Shanghai in a few days. Do you know when the earliest plane ____on Sunday?
#100226
A
leaves; takes off
B
is leaving; takes off
C
is leaving; is taking off
D
leaves; is taking off