—Eric, isn’t this book yours?—Yes, it used to belong to _________, but from now on it isn’t.
The teacher is speaking. Please stop _____ and listen to him.
Do you need more people ______ you______ the vegetables.
I have __________ my watch everywhere. But I cannot find it.
---What are you going to do this weekend?-----I’m going to help _____the city parks with my classmates to make them clean.
Mr. Wang _______drive to work, but now he _______there by bike to keep healthy.