— That’s the third time he’s won the award in this field.— Yes. He ______ his maximum potential in the past decade.
#102467
A
explored
B
is exploring
C
has been exploring
D
has explored
推荐题目
She won the first prize;though none of us   it.
#102979
A
expected
B
had expected
C
was expected
D
would expect
Ladies and gentlemen, please fasten your seat belt. The plane __________. 
#102320
A
takes off
B
is taking off
C
has taken off
D
took off
Tom as well as two of his friends ______ to the concert last night.
#104342
A
has been invited
B
had been invited
C
were invited
D
was invited