Armstrong became interested in _______ ever since he took his first _______ at the age of six.

A: Could you tell me when you will _______Tokyo?B: I’m not sure. When I _______ I will call you.

— Tom, you should be polite and let our grandpa get          the car first.— OK. And I will open the door for him.

Some teenagers ________ playing computer games ______ playing outside .

– What did they __________ about the competition?– A great success.