____ is believed that Bell invented the first telephone in 1876.
---What’s the matter _______ Tom? ---He has a high fever.
I love junk food very much, but I try to eat ___ only once a week.
This is _____ unhealthy lifestyle.
Billy: I’ve been fixing the computer for over three hours, but it still doesn’t work. Nana: Why don’t you take a rest and try ? Maybe you’ll do better then.
Mike: I always forget what I want to buy when I go to the market. Oscar: Well, you can make a of things you want to buy.