If we don’t prevent some students from surfing the Internet late at night, they won’t do their homework on time, ________.

I did not go with him; he went there _____ himself[ ]

Some questions may come to you during the interview, but you can and should make good preparations ________

He had hardly finished his meal ________ a familiar voice came to his ears.[ ]

Don’t today’s work for tomorrow. Today’s work must be done today.