She is a well­known doctor now, but she ________ as a cleaner at the hospital for five years.
#105075
A
has worked
B
worked
C
had worked
D
works
推荐题目
The student _____ from the training so much that he was _____ the first prize in the game. 
#105183
A
benefited; awarded
B
awarded; benefited
C
gained; earned
D
earned; gained
— Well, that was really a good meal. I _____ you were a really good cook. — Thank you. 
#105252
A
didn’t know
B
don’t know
C
haven’t known
D
hadn’t known
This kind of tree is widely ______ in our country.
#105192
A
divided
B
constructed
C
distributed
D
separated