表达正在进行的动作 — 英语选择题
题目
It is 4:00 in the afternoon. The children are in the park. Lily ______ a kite in the sky, and her brother Sam is riding a bike. Which sentence is TRUE? A. Sam is flying a kite. B. Lily is riding a bike. C. Lily is flying a kite. D. Sam is playing football.