题干
—Does Mary only have an apple for breakfast?
—Yes. She eats like a bird ______.
A：to wake up
B：to be strong
C：to lose weight
D：to fall asleep
答案(点此获取答案解析）
C
，每个鸟笼里装6只，至少需要多少个鸟笼？没装满的鸟笼里有几只 
