题目内容
A repot asys hundreds thousands trees ________ in the Auason(亚马孙河)rainforest last year．
[ ]
A．
was cut down
B．
have been cut down
C．
were cut down
D．
has been cut down
答案：C
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题目内容
A repot asys hundreds thousands trees ________ in the Auason(亚马孙河)rainforest last year．
was cut down
have been cut down
were cut down
has been cut down