---Dad, brother is playing football in the study.---Let it be. A boy like him __________ be naughty(调皮的).
Tom, our manager, ________ for American in two days and he has asked me to find out when the earliest plane ________ next Sunday.
________, we are better off and live a more convenient life.
The coat ________ thin but ________.
The WHO ________ eat less bacon and other preserved meat because they can cause cancer.
We have celebrated this festival for many years and it ________ Tang Dynasty.