Charles Babbage is generally considered to _______ the first computer.
#94390
A
to invent
B
inventing
C
to have invented
D
having invented
推荐题目
With several students         , Mr. Smith came into the lab. 
#96059
A
follow
B
followed
C
following
D
to follow
The teacher asked us        so much noise.
#95475
A
don’t make
B
not make
C
not making
D
not to make