下列句中的成语，使用恰当的一项是（ ）

Cindy shut the door heavily and burst into tears. No one in the office knew _____ she was so angry.

下列各句中，没有错别字的一项是（ ）

ebrate the New Year, the studentsstayed in the classroom after school, _____ the performances and ______ theroom.

gested us ________ here for Mr. Li, our mathteacher.