____is known to us all,,things can easily go wrong when people are under______.

下列各句中，没有语病的一句是（ ）

aFall is a great tourist _______ , drawing millions of visitors every year

She likes fruit,________ apples , bananas and pears..

John has put forward _______ most challenging question for us to answer.-Yes, it really is. I have never heard _______ harder one.