Mr. Li is not here, and you’d better call him ____3 p.m. ____ 5 p.m. tomorrow.
______a pretty boy he is!
Bill thought ______ necessary to work with friends and share different ideas.
You can improve your English ____ reading more.
David is _______singer. He thinks it is ______ interesting job.
—What do you think of Mr. Li’s teaching? —No one is _________. He’s my favourite teacher.