задание - вопрос №274700

1. Scientists have found ways of measuring the sizes and positions of bodies in the

Universe.

The Present Perfect Tense, Active Voice.

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С уважением, Раиса!

1.Scientists have found ways of measuring the sizes and positions of bodies in the Universe. (Present Perfect Tense, Active Voice)

2.The laboratory assistant was writing down all the data during the experiment. (Past Continuous Tense, Active Voice)

3.The launching of Sputnik 1 was followed by many achievements in science and engineering. (Past Simple Tense, Passive Voice)

4.Mendeleyev was appointed (Past Simple Tense, Passive Voice) Rector when he was 35 years old. (Past Simple Tense, Active Voice)