The Internet celebrated its birthday on September 2nd, by which time 40 years _______ since the first successful transfer of data between two computers. 
#103284
A
has passed
B
had passed
C
passed
D
have passed
推荐题目
His silence at the meeting suggested that he _______ to your plan. 
#99792
A
hadn’t agreed
B
didn’t agree
C
wouldn’t agree
D
not agree
The machine _____ . It hasn’t worked for years and no one wants to repair it.
#101169
A
didn’t work
B
wasn’t working
C
doesn’t work
D
isn’t working
The violin will have to be tuned before it _____.
#103337
A
plays
B
should play
C
is played
D
is being played