---Can you go shopping with me tomorrow? ---Sorry. I have to _____ my sick mother at home..
_ ____ wants to have a happy life, so they _____ work hard to make their life better.
-What is the date today? -_____.
-Why are there _____ people over there? -Because there _____ lots of water.
-_____ is your favorite subject, Maths, English or Chinese? -_____, English.
-Do you have fun _____ school? -Yes, my classmates and teachers are very nice _____ me.