我的妹妹病了。我需要在家照顾她。
My little sister is ill. I need to ________ ________ ________ her at home.这个小女孩日夜思念着妈妈。
The girl misses her mother ________ ________ _______.我们准备给你们加油。
We are going to _________ you _________ .我们每天至少需要睡8个小时。
We need to sleep _______ _______ 8 hours every day.你知道他们象征什么吗？
Do you know what they ___________ __________?David长大以后想成为一名科学家。
David wants to be a scientist when he __________ _________.