Peter graduated from university in 1998. He ____ in a high school ever since.
#101669
A
works
B
is working
C
worked
D
has worked
推荐题目
In yesterday’s newspaper, it was reported that great damage ____by the flood.
#100946
A
has been done
B
had been done
C
has done
D
had done
Mr. Smith ________ his pupils how to prepare for the test since 8 am, but no one listens to him.
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A
has told 
B
is telling
C
has been telling 
D
will have told
Though Jack _______ many times, he still plays computer games after school.
#102234
A
was warned
B
has been warned
C
has been warning
D
had warned