They _________ on the program for almost one week before I joined them, and now we are still working on it as no good results have come out so far.
#103812
A
have worked
B
had worked
C
have been working
D
had been working
推荐题目
I must be off now. My friends ________ outside.
#101413
A
wait
B
have waited
C
were waiting
D
are waiting
Polly observed that she ______ by a tall man in a dark coat when she ______ the faces around her on the train.
#102499
A
was watched; stared at
B
was being watched; glanced at
C
was being watched; glared at
D
was watched; looked at
According to the time table , the train for Beijing______ at seven o’clock in the evening .
#104140
A
leaves
B
has left
C
was left
D
will leave
John and I＿＿＿friends for eight years.We first got to know each other at a Christmas party.But we＿＿＿＿＿ each other a couple of times before that.
#104639
A
had been； have met
B
have been； have met
C
had been； had met
D
have been； had met
—Jane, have you finished your paper?—No, I ________ my sister with her drawing all the morning.
#101264
A
help
B
helped
C
was helping
D
have been helping