What should people do if they have questions？A．Visit city hallB．Write a letterC．Make a tel

What does the speaker suggest people should do when they go shopping？A．Avoid over－packagin

What should all countries do to help solve the problem of global warming？A．They should hol

What, according to Hodge, should people do before doing drills with a cold？A．Determine the

What should students do if they are interested in the tutorials？A．Contact the elementary s

What is the first thing people should remember if they want to make a good presentation？A．

If people want to reduce stress and depression, what attitude should they take according t