60 ! с)read,translate the sentences,change the words in italics into the words with similar and opposite meanings. 1.he happened to meet her in that broad street.2.they are investigating complex problems.3.it was a very difficult experiment .4.they started researching this problem.5.it was a big contribution . 2.fill in the gaps with the missing words in the following sentences,the first letter of each word has been given to help you: 1.different theories the fact.2.the of some scientific fields are not clear.
Не happened to met her in that narrow street. Он случайно встретил её на той узкой улице.
2) They are investigating difficult problems. Они иследуют сложные проблемы.
They are investigating easy problems. Они иследуют лёгкие проблемы.
3) It was a very uneasy experiment. Это был не очень лёгкий эксперемент.
It was a very easy (effortless) experiment. Это был очень легкий эксперемент.
4) They began researching this problem. Они начали иcледовать эту проблему.
They finished researching this problem. Они закончили иследовать.
5) It was a large contribution. Это был большой вклад (пожертвование).
It was a small (a little) contribution. Это был маленький вклад (пожертвование)
2) different theories use the fact. the base of some