题目内容
句型转换
I think we can buy some ping-ping balls.
(改为否定句)I ________ think we ________ buy ________ ping-pong balls.
答案:don't;can;any
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题目内容
句型转换
I think we can buy some ping-ping balls.
(改为否定句)I ________ think we ________ buy ________ ping-pong balls.