The U.N. announced, “China so far( )$6 million to the World Food Program to help ease food shortages in the three African countries worst affected by the Ebola virus.”
The U.N. announced, “China so far( )$6 million to the World Food Program to help ease food shortages in the three African countries worst affected by the Ebola virus.”
A.
contributed
B.
contributes
C.
is contributing
D.
has contributed
正确答案是D
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