题目内容
The spread of the Ebola virus in Nigeria is believed _______ by August, 2014.
A.to be controlled
B.to have been controlled
C.to control
D.to have controlled
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题目内容
The spread of the Ebola virus in Nigeria is believed _______ by August, 2014.
A.to be controlled
B.to have been controlled
C.to control
D.to have controlled