When first ________ to the market, the computer software . was not a success due to its complexity in operation. 
#82627
A
introducing
B
being introduced
C
introduced
D
to be introduced
推荐题目
On the small island, which is the entrance to New York Harbor,  _______.
#79747
A
the Statue of Liberty stands
B
stands the Statue of Liberty
C
does the Statue of Liberty stand
D
is the Statue of Liberty standing
Only when I put myself in their position ________ they were more miserable than me.
#80116
A
I had known 
B
had I known
C
I knew
D
did I know