______ is good for our health.A. Walk B. Walks C. Walking
_______ beautiful flowers they are!
—Where are you going, Jack? —I’m going to _______ the English corner. Would you like to _______ me? —I’m afraid I can’t.
—What happened to Mike? —He had a stomachache. He began to work _______ having breakfast this morning.
—I talked with a foreigner for a long time yesterday. —Great! It’s a good _______ to practice English.
—Would you mind _______ in the classroom? —Sorry, I won’t do that again.