They never decorate a fir tree (a)   Christmas.

He usually plays football (a)   Sundays.

It's often cold (a)   November.

I go to work (a)   scooter.

But my friend always go (a)   foot.

I never pay ........... cash, always .......... card.

(a)  

My gradma gets up (a)   seven o'clock.

She was born (a)   the ninth of September.

I will call you back (a)   an hour.

He often works (a)   night.