The book which ________ at the end of last year turned out to be a great success in Shanghai. [ ]

We’ll have to work the clock if we want to complete the work on time

We are confident that the environment ________ by our further efforts to reduce production.

a week do you wash your hair, Tina—Three times a week.

How are you going to spend your free time —Why not ______ a hobby, like collecting cards