----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
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—Why were you so late this morning? —I _____ in heavy traffic for an hour on the way here.
#101422
A
have been caught
B
have caught
C
had caught
D
was caught
- How could I thank you enough? - Don't mention it. Any other man_____that.
#100289
A
would do
B
will do
C
would have done
D
must have done
She calls back whenever someone ______ her a message.
#99397
A
left
B
leaves
C
had left
D
will leave
 He will have learned English for eight years by the time he _______ from the university next year.
#99963
A
will graduate
B
will have graduated
C
graduates
D
is to graduate