DuoDuo is a great lone traveler crossing borders of nation, language and history, as well as a determined predictor of some of the most basic, universal human values that _____ in our troubled modern times.
#104623
A
have been overlooked
B
have overlooked
C
has been overlooked
D
is overlooked
推荐题目
 —What’s the noise?   —Oh, I forget to tell you. The new machine     .
#99908
A
has been tested
B
is tested
C
will be tested
D
is being tested
I’ll go to bed as soon as my homework______.
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A
do
B
does
C
are done
D
is done
I have been working here since I _______ this new position.
#101688
A
offered
B
have offered
C
was offered
D
had been offered
Great changes in every field _____ in the last ten years. 
#99202
A
take place
B
took place
C
have taken placed
D
had taken place