1.He ran (run) quickly to help and finally caught the robber.
點解係ran唔係was running?
2. The accident was caused by the carelessness of a lorry driver who drove(drive) at high speed.
點解係drove唔係was driving?
3.The pollution problem in Hong Kong is(be) quite serious.
點解係is唔係has been?
4. It is estimated that many of the students will be unable to pay the fees and they will need(need) to quit their students.
點解係will need,唔係need?
5.We will hold( hold) a meeting with the Principal next Monday in order to discuss the problem of the rise of school fees.
點解係will hold,唔可以are going to hold?
6. When we got(get) to the Bus Terminus, the queue was so long that we wondered when we could reach our destination.
點解係got,唔係was getting?
7.However, reading textbooks and reference books is(be) a must for students to gain more knowledge.
點解係is,唔係are?
8.They were invented about a hundred years ago, but since then, many achievements have been made in the field of aeronautics, resulting in the fact that air travel has become (become) a common activity.
點解係has become,唔係become?
因為in fact係用present tense.....
http://www.hk32168.com/EnglishLearning/English_Grammar_Revision/exercise/3a.htm
有完整啲題目