People from the West like to use such expressions as “please” and “thank you” in cases ______ some people in Asia may not think it necessary

Naturally, after I tell my brother what to do, he ____ go and do the opposite．

_____, a small advertisement held my attention, which read “Easy jobGood wagesNo experience necessary.” [ ]

I didn’t hear you come in just now.— That’s good. We tried ________ any noise.

____Switzerland (瑞士) is very small , _____it is the land of watch and it is very rich.