I always go to sleep ___________ the light on. 

 --- Another cup of coffee? ---No. thanks. I _____ be off. Marry is waiting for me.

—Would you like some______?—Thank you, but l don’t like it.

It is usually warm here in March, but it _____ be rather cold sometimes.

—Excuse me. May I sit here? —I’m afraid you _________. My daughter will come back soon.