The old man has retired from the factory. He _____ there for 30 years. 
#101212
A
works
B
worked
C
has worked
D
was working
推荐题目
— Where _______ you put my dictionary?— I left it on your desk when you _______ to Tom.
#102466
A
did; spoke
B
have; were speaking
C
had; were speaking
D
had; spoke
In the last few years thousands of films         all over the word.
#102635
A
have produced
B
have been produced
C
are producing
D
are being produced