Did you ask Tom for help?—I ________. —I managed perfectly well on my own.

do youstudy for tests —I study listeningto tapes.

He _______ in his office. I phoned to his office just now, but no one answered.

In hot weather, an old tyre can break again easily _____it’s mended.[ ]

What a beautiful birthday cake!—Yes, it’s ________ my mom. I received it this morning.