1.When did you first know him? How ………………………………………………………………………………………… 2.Our journey lasted three day. We had …………………………………………………………………………………… 3.I couldn’t get the high score in English speaking test. If only…………………………………………………………………………… 4.She had to do the washing up but she didn’t. She forgot…………………………………………………………………………………… 5.English subject is so easy for me that I speak and write fluently. It’s such ………………………………………………………………………………………… 6.I left the air conditioner on all night, Now , I hope I ‘ll waste electricity. If ……………………………………………………………………………………………… 7.This TV was too old to watch .We can’t watch it clearly It was ………………………………………………………………………………………… 8.Gary is the best guitarist in her class. No one else ………………………………………………………………………………… 9.Since the invention of computer, people have saved a lot of time. Since the computer was ……………………………………………………………………… 10.It’s said that everybody cleaned up their neighborhood . everybody…………………………………………………………………………………………