1 We must take advantage of this opportunity to improve our spoken English. 2 As far as I know, the car accident was caused by the weather. 3 The workers were all very much surprised at what the boss said. 4 The students should take an active part in different activities of their school. 5 All the teachers will take pride in the progress of their students. 6 He has set a very good example for us modern youth. 7 Some students have spent much too much time playing computer games. 8 He is always ready to help others. 9 The ink has run out . 10 Don't put off till tomorrow what you can do today.