He is very sickI insist that a doctor __________ immediately

What about playing football this afternoon, Sam —I would rather at home than football. It’s too hot outside.

Why are you so nervous?—To our great surprise, we foundby the strangers.

对下列句子中画线词的解释，有误的一项是（ ）

Those tigers in the forest never_____ people unless they are very hungry.