Mike and Yifan made some riddles(谜语) for Robin.

a.   b.   c.   d.

A. summer   B. autumn   C. winter   D. spring

{#blank#}1{#/blank#}It's always warm and rainy. There are many flowers everywhere. People often have a picnic and go camping in the park. Which season is it?

{#blank#}2{#/blank#}This season is golden. Farmers are busy. They often pick apples. The Mid-Autumn Festival is in it. Which season is it?

{#blank#}3{#/blank#}Trees and leaves are green. It's sunny and hot. People often go swimming. We can eat ice cream. Which season is it?

{#blank#}4{#/blank#}It's very cold. There are almost no leaves on the tree. Children often make a snowman. New Year's Day is in it. Which season is it?