Our boss is very ________，so we have to arrive on time，or we would be fined

You can’t legally _____the property until three weeks after the agreement is signed.

Do you know second-hand smoke— To protect our health and memory.

What the doctors really doubt is ____my mother will recover from the serious disease soon .

一Mom, I have nothing to do in my free time but do homework.—My dear, you should a hobby like drawing or taking photos.