Luckily, all the students got out of the teaching building _ it fell down.
---Are you going to take part in the speech competition? ---_____.It’s too good a chance to miss.
This pair of jeans looks nice _________ me because I look nice ________blue.
---Look, the old man who is playing ________ guitar is ______ university teacher. ---Oh, how nice the music is!
Helen’s never late for school , _____ she ?
Half of the class _____ done most of the work .The left _____ rather difficult.