Question

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Вставьте слова в нужную форму conduct : discover : make : prove : invite : develop : invent : do : do


1 Radiation by Pierre and Marie Curie in 1900.
2 Experiments in the medical university every day.
3 An important discovery by Newton when he was resting under an apple tree.
4 The gravity theory many times so far.
5 The telephone in the 1870s.
6 New methods nowadays by teachers and lecturers to organise the studying process better.
7 A lot of research must to study side effects of new drugs.
8 Many tests and trials to prove safety of a new method.
9 People can to act as guinea pigs for medical experiment.

Answer 1

Ответ:

1) was discovered

2) are done

3) was made

4) has been proved

5) was invented

6) are developed

7) be conducted

8) are done

9) be invited

Объяснение: