Question

【题目】—It must be on Channel 2. Try that.
—I (try) that. But I still can't get anything.

Answer 1

【答案】have tried
【解析】句意：—它一定是在2频道，试一下吧。—我试过了，但是我什么也没有得到。根据But I still can't get anything.可知，这里强调尝试后的结果，所以应该用现在完成时，所以答案是：have tried 。