I often go to school_____foot, but I had to go to school_____taxi yesterday because of rain.[ ]

Excuse me. Which is the way ______ the post office, please? —Sorry, I don’t know. You can ask the policeman _______ help. [ ]

Did you see Mary and her sister this morning?– Yes, I saw _________ girls playing in the playground.

Clean-Up Day is coming. How do we let more people know it?—We could ____ advertisements after school.

Shall I take my swimming suit ?–No , you _____ . We will just go hiking in the mountain .