Shall we walk around the park or go for a bike ride?— _________ They are both good activities to me

Wind power units are placed ______ there is a lot of wind.

How are you getting along with your project?— I was about to give up when an idea occurred to me ________ I could work with my roommate Tim. [ ]

One third of the country ________ covered with trees and the majority of the citizens________black people.( 2011·湖南)

Since you have successfully _________ an end to the project, why not treat yourself ________ a good rest