—You seem tired, David.—Yes. I _____ all day long and can’t wait to go to bed now.
#102886
A
am working
B
had been working
C
have been working
D
was working
推荐题目
My brother wants to work in the factory which _________ now.
#101300
A
is building
B
has been built
C
is being built
D
is to be built
  ─Are you going to plant a great many trees in this area? ─Yes. The soil _________ away in this way.
#103061
A
doesn’t wash
B
won’t wash
C
isn’t washed
D
won’t be washed
 If we        earlier, we couldn’t be waiting here in a queue.
#99856
A
have started
B
started
C
start
D
had started
It is ten years since he _______ in this college.
#101795
A
works
B
worked
C
has worked
D
had worked