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
Next door to ours ______, who has achieved much in physics.
#80152
A
where lives an old scientist
B
where does an old scientist live
C
lives an old scientist
D
does an old scientist live
—Did you know any German before you came to Berlin? —Never _______ it, actually.
#79594
A
had I learned
B
have I learned
C
I learned
D
was I learning
She is a strong-willed woman and not once _______ in to any difficulty in her life.
#80939
A
she has given
B
did she give
C
she gave
D
has she given