_____________ you study harder, you won’t win the scholarship.

The countryside air is fresh,________________, it’s not polluted.

Our teacher explained the lesson slowly ______________ we might understand him.

__________ he goes to the theatre with me, I shall go alone.

His mother was sick._________________, Jane had to stay at home to look after her.

They asked me to wait for them; ____________, he didn’t turn back.

__________ the darkness in the room, we couldn’t continue our studying.

_____________ he knew the danger of smoking, he couldn’t give it up.

It was already 6p.m, ______________ we closed our office and went home.

_________________ he had to take her mother to the hospital, he still attened our party yesterday.