My friend, who      on the International Olympic Committee all his life, is retiring next month.
#101632
A
served
B
is serving
C
had served
D
has served
推荐题目
– Where are you working now?– In Chongqing. But I _____ in Shanghai for 5 years. 
#100056
A
worked
B
had worked
C
have worked
D
had been working
— Hi, Torry, can I use your  computer for a while this afternoon? —Sorry.           .
#101813
A
It’s repaired
B
It has been repaired
C
It’s being repaired
D
It had been repaired
 Now we have arrived at the lake. But the view I photographed that day ________ any more.
#99469
A
doesn't exist
B
isn't existing
C
hasn't existed
D
hadn't existed