My grandmother is very old, and she can't see clearly without __________.

----Where is Tom?----He’s left a(n) _____ saying that he has something important to do.

 — What’s your favourite ________?   — It’s green.

_______ wear white uniforms and help doctors in hospital.

-Do you know the tall boy with sunglasses?-Yes ,he is Jack Green and he is one of my friends.