You are under 18 years old, so it’s _______for you to join Trail walker.
Is ________ mother a teacher? —Yes, and Lucy and Lily are.
There are lots of restaurants in our town. And most of _____ are clean and cheap.
Mr Wang is leaving ________ Guangzhou next week. [ ]
Mrs. Smith found the toys here and there, so she asked her son to ______ his toys before having dinner