Iknowitisn’timportantbutIcan’thelp(think)______aboutit.
Iknowitisn’timportantbutIcan’thelp(think)______aboutit.
Iknowitisn'timportantbutIcan'thelp（）aboutit. A: buttothink B: thinking C: to D: think
Iknowitisn'timportantbutIcan'thelp（）aboutit. A: buttothink B: thinking C: to D: think
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