— You seem familiar with Mr. John?—Of course, we _________ together for three years in the 1990s.
#38207
A
have worked
B
were working
C
are working
D
worked
推荐题目
While the alien _______ a souvenir, the girl called the police.
#42248
A
was buying
B
bought
C
buys
D
is buying
 We _____ more than 1,600 words since we began to learn English.
#36222
A
learn
B
have learned
C
learned
D
are learning
 —Where is Jack? —He _________ basketball on the playground. 
#38025
A
plays
B
is playing
C
is going to play
D
play