Is _______ necessary_______ the workers wear uniforms at work?A. it, for B. this, to C. it, that
The little girl is very thirsty after singing. Please give her __________ to drink.
--What would you do if you ____ a million dollars?--I’d give it to the charity
Can you call me when you ________ home?
We are from China and we _______ Chinese.
Some students are so ______ that they often make mistakes in their homework.