There's no doubt that is the coldest season of the year in China．
Nick's mother worries about his （healthy） lifestyle， though he is a collage student．
I have something important to with you through video talk．（discussion）
The artist's helps him go further on the road to his dream．（wise）
The number 13 is considered an （lucky） number in some Western countries．Many hotels and tall buildings don't have a 13th floor or a Room 13．
Lucy found a w on the street and some money was in it．
The sofa is terribly heavy．Can you move it by y ？
We will go to the bookstore at half p seven tonight．
He is an h boy． His classmates all believe in him．
Would you mind the window，please？It is too hot here．
The e kids learn to be independent， the better it is for their future．
Children should go to bed before nine every light，or they will be （sleep） in class．
Greenhouse gases are to the environment． （harm）
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