----This returned Chinese scholar has become one of the top experts in this field.----Yes,I know him very well.He____in Africa with animals for eight years.
#104192
A
has worke
B
had worked
C
worked
D
has been working
推荐题目
—Oh, God! Somebody ________ the cup.—It wasn't me. I didn't do it.
#99216
A
was breaking
B
is breaking
C
has broken
D
had broken
I _______to go shopping that Saturday, but the bad weather made me change my mind.
#102363
A
plan
B
would plan
C
had planned
D
have planned
My mind wasn’t on what he was saying, so I’m afraid I _____ half of it.
#104990
A
was missing
B
had missed
C
will miss
D
missed
---I _____ to a party, but I’ve got nothing to wear. --- Why don’t you have a dress made for the party?
#99775
A
was asked
B
will ask
C
have asked
D
have been asked