Iknowit'snotimportantbutIcan'thelp____aboutit.（） A: tothink B: thinking C: thinks D: think
Iknowit'snotimportantbutIcan'thelp____aboutit.（） A: tothink B: thinking C: thinks D: think
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Iknowit'snotimportantbutIcan'thelp____aboutit.（） A: tothink B: thinking C: thinks D: think