And in that way it has been proved that the ...

[ Grammar ]

And in that way it has been proved that the radioactive elements are constantly ______ and that they produce at the end ordinary elements, principally helium and lead.

A. disintegrating

B. to disintegrate

C. being disintegrating

D. disintegrated

Select your answer:
A B C D E

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Will you be going to the training today afternoon?

A. He asked me if I would be going to the training that day in the afternoon

B. He asked me if I´m be going to the training today afternoon

C. He asked me if I will be going to the training that day afternoon

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A. simile

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A. We’re
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A. How do I turn on this computer, Mr. Thomas?

B. How do I, turn on this computer Mr. Thomas?

C. How do I turn on this computer Mr. Thomas?