He doesn't know what _____(do) and where _____(go).

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He doesn't know what _____(do) and where _____(go).

He doesn't know what _____(do) and where _____(go).
He doesn't know what _____(do) and where _____(go).

He doesn't know what _____(do) and where _____(go).
He doesn't know what _to do____(do) and where __to go___(go).

to do 和to go

to do
to go

to go N to do

都用不定式,to do 和to go,这里“疑问词+动词不定式”做know的宾语