—Could you tell her to call me ?—Sure.

—What do you think of summer in Nanjing?—Well, it’s sometimes ______ hot and sometimes there is ______ rain.

--- Which of the two T-shirts do you prefer? ---______is OK. I don’t like their styles. 

I like ______ days because I like making snowman .

— How many left-behind children are there in your class? —            .