先阅读，再判断。(对的写“T”，错的写“F”。) Dear Grandpa, Thank you for the new jeans. They are cool! It's cool in Beijing. I can wear my jeans and T-shirt. I have a new jacket. My old jacket is too small. I want to buy a pair of sneakers. They are fifty yuan. They are too expensive. What's the weather like at the farm? Is it warm? Love, John (      )1. It is warm in Beijing. (      )2. John has a new jacket. (      )3. Grandpa is at the farm. (      )4. The sneakers are thirty yuan. (      )5. The sneakers are too expensive.