With the boy_______ the way, we had no difficulty _______the way to the West Lake. 

The factory produced many famous cars, none of _____shipped to foreign countries.

— How about the suggestion Prof. Smith put forward at the meeting last Friday? — The committee discussed it for hours without a decision _______. 

With so much work _________, they feel worried all the time.

With lots of trees and flowers _____here and there, the city looks very beautiful.