Yuka is my best friend.

Please try asking the employee responsible.

Have you checked the timetable for the new semester?

I exercise at the gym for two hours every day.

What do you call 'time' in dialect?

I've been waiting for hours at that shop, but the meal still hasn't come out.

We measure power using a wattmeter.

He was standing behind me.

He was playing with the dog at the back of the house.

He leaned his back against the chair and relaxed.