I.1) Mai worked hard so she passed the final exam easily.
2) I am very interested in learning English as it is very important for my job.
II.1) The Chernobyl nuclear accident happened made the area inhabitable.
2) Drinking too much soft drink cause health problem.
III.1) Your cheque was sent last Monday and should deliver to you tomorrow.
2) If we go littering, the environment will become seriously polluted.
