Is his schoolbag on the chair

书包───a bag;椅子───chair

She stuffed all her bits and pieces into a bag and left.───她把她零零碎碎的东西都塞进了一只包里就走了。

Here's your change. Would you like a bag?───这是找给您的零钱。您要个袋子吗？

She packed her few belongings in a bag and left.───她把她的几件东西装进包里便离开了。

The big Klaus went into a bag with rocks to reach the bottom of the river as fast as possible.───大克劳斯钻进口袋，为了能尽快沉到河底还在口袋里装了些石头。

I take out a bag of candy from my backpack and hold it out to the children.───我从背包里拿出一包糖分给孩子们。

She was wearing a thin dress. She was holding a bag of sweets. She had nothing else. Her arms and legs hurt a bit, but she could walk.───她穿着很薄的裙子，拿着一袋糖。她没有其他东西了。她的胳膊和腿有一点疼，但还能走路。

He stole a bag from the room.

I put a few personal belongings in a bag.

He bought me a bag of toffees.

He hastily stuffed a few clothes into a bag.

All the children were given a bag of goodies - mostly sweets and toys.