I’ll have my winter(冬天) vacation(假日) in Xiamen this year.–It’s a nice place. ____ your vacation.

My sister is_____ young_____ go to school.[ ]

We have friends to help us fight against pollution, and trees are one of ________.

He finds watching English movies frustrating because the people speak too quickly.

How do you like these two books? —___________ of them are interesting. I want to read them again.