They try _____(not,do) that again,but they fail _____ (do) it.
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Theytry_____(not,do)thatagain,buttheyfail_____(do)it.Theytry_____(not,do)thatagain,buttheyfail_____(
They try _____(not,do) that again,but they fail _____ (do) it.
They try _____(not,do) that again,but they fail _____ (do) it.
They try _____(not,do) that again,but they fail _____ (do) it.
not doing,to do
他们又一次尝试不要那样做,但他们失败了.
no to do ,to do
not doing, to do