Linda was ______ the experiment a month ago, but she changed her mind at the last minute.

She managed to save ______ she could out of her wages to help her brother.

AIDS is said ______ the number-one killer of both men and women over the past few years in that region.

We＇ve just installed two air-conditioners in our apartment, ______ should make great differences in our life next summer.

Have you ever been in a situation ______ you know the other person is right yet you cannot agree with him?

For some time now, world leaders ______ out the necessity for agreement on arms reduction.

______ of the twins was arrested, because I saw both at a party last night.

She did her work ______ her manager had instructed.

She would have been more agreeable if she had changed a little bit, ______?

He is quite worn out from years of hard work. He is not the man ______ he was twenty years ago.

They overcame all the difficulties and completed the project two months ahead of time, ______ is something we had not expected.