3B. GRAMMAR articles: a/an, the, no article (0)

Did you remember to lock (a)   kitchen door before we left?

I shouldn't drink (a)   coffee. It keeps me awake at night.

Can you turn on (a)   air conditioning? It's boiling in here!

Jane is allergic to - cats. She starts sneezing when one comes near her.

(a)  

Terry and Charlotte are going away (a)   next weekend.

Are these (a)   keys you were looking for?

I wasn't feeling very well yesterday so I didn't go to (a)   work.

(a)   river which runs through Paris is called the Seine.

I'm seeing Katie tomorrow. We haven't seen each other since (a)   last year.

It looks as if it's going to rain. Take (a)   umbrella!