Listening attentively in class and reviewing in time _______ a sure way to improve your learning, and this is especially true _______ it comes to standard tests.

---Who is that woman? ---She is ________ mother.

Celia _________ tall and she _________ short curly hair.

I feel it is you rather than the boy who________for being late for the speech.

There ______ a desk and two chairs in the room.