1 Mark is the only child in his family.

1. Mark enjoys his vacation a lot.
2. he prefers to play chess, swim and walk.
3. He doesn't like to watch TV, films or play team games;
4. Mark is probably a very introverted boy.

Sally is seven years old. She is watching a TV program. Her mother warns her about it.

Mother : What are you watching, Sally?
Sally: A horror film.
Mother : _______________________
Sally: Why?
Mother : Because they can make you feel afraid.

A hot -air balloon floats because hot air is lighter than cool air.
A hot-air balloon consists of a basket in which the pilot and the crew stand, a gas burner and a large balloon.To take
off, you turn on the burner which heats the air inside the balloon. When the air gets hot, the balloon rises. To land, you
allow the air inside the balloon to cool. The word which refers to

A. the air.
B. the balloon.
C. the gas.
D. the burner.