have you been to____stop jack from doing that?No,he never listens to me.填单词

have you been to____stop jack from doing that?No,he never listens to me.填单词

题目
have you been to____stop jack from doing that?No,he never listens to me.填单词
答案
have you been 后面不能接 to,或许空格应该在to 之前才对.
这样就可以填 trying,意思是“你有一直试着阻止Jack 做那件事吗?”
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