Is Jack at school today— No. He’s at home ______ he has a bad cold.

You will be successful in the interview __________ you have confidence.

The man refused to say sorry to me, ____ it was his mistakes.

Lucy was completely _____ after jogging in the hot sun all afternoon; she had little energy left.

According to the statistics, Chinese families own _____ private cars today as they did in the 1990s.