Bob often _______ two hours ________ his homework.

How many of us ____ a meeting that has nothing to dowith us is not important at all

I used to inTibet , but now I am used toinBeijing.

This is my uncle___________ this is my aunt.

Excuse me. But I want to use your computer to type a report.—You _____have my computer if you don’t take care of it .