_______ is necessary for you to lock the car when you don’t use it.
He works much harder than I, so the money he has made is mine.
--- Mr. Smith has been working all the morning without rest. --- He is a (n) man. He never looks tired.
My cousin in Beijing University at present, after which she will work in Beijing.
--- I saw Nancy on the way home yesterday.--- It be her. She’s gone to America for further study.
It is the in China that people often shake hands when they meet someone for the first time.