Prices of daily goods _____ through a computer can be lower than store prices.

Any student,who is thougnt ______ the rules, for example, by cheating, has _____ before a student court.

Don't leave your work half _____.

_____ the ladder, get someone to hold it.

---How exciting ! I drove my new car at a speed of 110km/h on Sunday morning.

　 ---Were you crazy ? You ______ yourself !

.---This _____ John's house .It's number 101.

　 --- I don't think so.He said a large white house but this is a small yellow one.

--- Who told you my address ? --- I don't remember clearly. It _____ Li Mei.

　 ---It _____ Li Mei. She doesn't know it.

Can you imagine that a smart man like him_____ make such a stupid mistake?

The question came up at the meeting _____ we had not enough money to do the research.

____ seems strange to us is ______ she can sing so many English songs beautifully.