Parents have a duty to ____ their children from the harmful effects of the Internet.
Stop making so much noise ____ the neighbor will start complaining.
He was sentenced to death _____ what he has stolen from the bank.
--- You haven’t been to Beijing, have you? -- _____. And how I wish to go there again!
Please make my excuse at tomorrow’s meeting--- I’ve got too much work _____.
Mr. Smith is _____ a good teacher _____ we all respect.