David is ______ eight﹣year﹣old boy with short black hair．（　　）

A．/B．aC．anD．the

Nancy took her temperature and found she had a ______．（　　）

A．coughB．toothacheC．coldD．fever

﹣______ do you usually share happiness with？

﹣My parents and my best friend．（　　）

A．WhoB．WhoseC．WhatD．How

I like hiking in the forest because the air is pretty ______．（　　）

A．freeB．dirtyC．pollutedD．fresh

Ladies and gentlemen，attention please!I have ______ important to tell you．（　　）

A．nothingB．somethingC．everythingD．anything