Airports are increasing their security measures ________ there have been several bomb threats in the past few weeks.

I'll pay for your coffee ______ you paid for mine the last time we went out.

The company president and vice-president could not attend the meeting. _________, we decided to postpone it until the following week.

Fifty people lost their jobs ________ of budget cuts in the marketing department.

Let's stop off at the library _________ I can return these books.

Kevin wasn't feeling well yesterday afternoon, _______ I'm not sure if he'll come into the office today.

She thought nobody had enjoyed the article she wrote in the magazine. __________, she was quite surprised when she received her first piece of fan e-mail.