Peter ________ be really difficult at times even though he's a nice person in general.
Making money seems like a problem that’s very far away from us children, _____only the parents need to care about.
Hard work and lack of sleep have _____ her beauty and youth in recent years.
All the materials have been posted to you. I’m looking forward to the chance to meet you __________ to discuss the present situation of our company.
Some pills many people take to achieve or maintain their desired weight will lower their life expectancy_____ they contain something harmful.
We shall not start the project until it __________ by the committee.