----Have you got any idea for the winter vacation? ----Yes. I’m going to a peaceful place, especially _________ suitable for relaxation.

I haven’t read ____ of the articles carefully, but I find that there is a striking similarity between them. 

I think this trip was well worth _____we had paid.

Everyone knows that Canada is the second largest country in the world, larger than _____ country in Asia.

Don’t let ____ in. I’m too busy to see ____.