He said ______ couldn’t he work out the problem but his teacher didn’t know how to do it

下列词语中加点的字，注音有错误的一项是

We are going to Jiuzhaigou this summer. —— ________________.

Mary’s red face suggested that she_______shy, and her friends suggested that she______a deep breath.

If I work hard at my lessons from now on. Can I do well in them—Sure. __________.