__________, we’d bought a city map. We may get lost without it.

When the apples______ the tree are red ,you can always see many boys ______ the tree. [ ]

Look! There is a big river. Let’s swim in it!—No, I think it’s _________ dangerous.

Look at the boy running on the ground. Is it David?– It _______ be him. I saw him go to the teacher’s office just now.

My mother wants to find a new . She doesn’t like to here.