Jim DIDN'T LOOK forward to the exam. he WAS STUDYING for the past two months,and still DOESN'T FEEL sure that he KNOWS even half of what he should know. he WAS QUESTIONING his teachers repeatedly about the material that APPEARED on past exams,but he still DOESN'T BE convinced that anything he LERNT WAS relevant to this year's exam. he WAS STILL STUDYING at seven o'clock in the morning on the day of the exam, he REVISED all night long, and FELT exhausted. in fact he WAS so tired that he FELL asleep in the middle of writing the exam and WOKE UPonly just in time to finish it.
2. in the last few years there WAS marked change in our attitude towards environmental issues.. it STARTED with scientists revealing that a hole BEGINNING to develop in the ozone layer above the arctic circle, when people WERE STARTING to notice changes in the climate, it BECAME obvious that there WAS a serious threat. those of us who HAVE EVER USED an aerosol spray will presumably think twice before using one again. and what IS HAPPENNING to all that nuclear waste we have produced? presumably most of it IS DUMP into the sea, but the number of protesting voices ARE INCREASING steadily year by year.
3. if it HASN'T BEEN for louis, joan WOULD HAVE NEVER SURVIVED her trip to paris last month. she(not/meet) him before, but she WAS certainly glad that she had by the end of her stay. the fisrt thing that HAPPENED was that the hotel
where she WAS PLANNING to stay HAS NEVER RECEIVED her booking, so they had no room for her. then, as she WAS TRYING to get a taxi to take her to another hotel, someone on a motorbike SNATCHED her bag with all her tickets and credit cards in it. as her french WAS quite rusty, she DIDN'T KNOW how to explain what HAD HAPPENED. it was then that louis APPROACHED her and INTRODUCED himself.