I’m sorry I stepped on your foot; it was an accident.—It wasn’t! You did it ______________ .

Most Chinese children like to sleep with their mother. They are ＿＿ thedark.

My father spends lots of time ________ with my grandmother onweekends.— Really He is a good son.

下列各句中，没有语病的一句是（ ）

Many lifestyle patterns do such greatharm to health that they actually speed up ______weakening of the human body