Mary,put on your coat,________you’ll catch a cold.
A spaceship flies at about eleven kilometers _______ second.
There are a lot _______ people today than yesterday.
Alice has gone to the classroom and she didn’t say ________.A. when did she come back C. when would she be backC. when she came back D. when she would be back
Our sports meeting will be held ________.
—May I speak to Lucy? —This is ________ speaking.