How is the weight used？A．To measure amounts of rainfall.B．To check the accuracy of scales.

The most crucial problem any economic system faces is how to use its scarce resources.A．pu

Why does the author use the phrase "Quartz is quartz"？A．To describe how the differences be

I think what _______to me about his painting is the colors he uses.A) appealsB) attract

What is the main idea of the new item？A．How to use solar energy.B．An introduction to a ren

－ Let me show you how to use the printer. －（)

Man: Excuse me, could you show me how to get to the public library？ Woman: There is a publ