With the rapid development of medical science, we ________ more new drugs used in the treatment of cancer. 
#101807
A
see
B
had seen
C
will be seeing
D
would see
推荐题目
---Is dinner ready?---Not yet. The main course ______. It needs another ten minutes.
#100637
A
was not done
B
had not done
C
is not done
D
has not done
A fire broke out in the neighborhood last night. By the time the firemen arrived, it    . 
#101011
A
had been put out
B
would put out
C
has been put out
D
was putting out