he doesn't know ----- medicine to take(服用)

he doesn't know ----- medicine to take(服用) Eric doesn't know what he should take to the party.（改为简单 he doesn't know she doesn't know ___ .A to take which step He doesn't know which pencil to choose.(改为同义句） He doesn't kn I don't know whether to take the medicine at once.If I _____ he doesn't know how to do next（改错） he doesn't know the a_______ to the question. He doesn't want to l____ the other children know. To our s___,he doesn't know our names. he doesn't seem to know what happened last night the doctor said he ____ take any medicine.A、needn't to B、did