ответ:Frank said that they had had an ecology class the day before. They had discussed different environmental problems.
Chris was not surprised as they were the most important problems those days.
Frank thought that many people understood they should protect the environment.
Chris was not quite sure if they really understood because facories dumped wastes into rivers, air pollution was getting worse, too.
Frank agreed & added that more & more people fought agaisnt nuclear tests, nuclear weapons & other things.
Chris wondered if they would win & when they would win those battles.
Frank suggested hoping for the best.
Объяснение:
Ex: 4. Вибрати правильний варiант Рast Perfect, Past Simple.
1. Before the Bells chose /had chosen the hotel, they discussed /had discussed all the details with their travel agent.
2. Paul started/had started working as a designer after he graduated/had
graduated from university.
3. Tom entered/had entered the classroom and closed /had closed the door.
4. When Sam came/had come to the platform, the train already arrived/ had
already arrived
5. By the time we got/had got home, the film finished/had finished.
Ex: 5. Утворити речення в Past Perfect Tense.
1. Tom apologized because he had missed the seminar.
2. Nora/looked/wonderful/after/she/had lost/a few kilos.
3. After/they/had put/a tent/they/made a fire.
4. Fred/had phoned/me before/I /left/home.
5. Every body/enjoyed/the visit/to the museum/although/we/had already/
been/there.