By the end of the year, all old generators ………….. with new ones.

CHOOSE THE CORRECT FORM TO COMPLETE THE SENTENCE:

In a nuclear fusion process, atomic nuclei ………… together to form a heavier nucleusa. 

IDENTIFY THE CORRECT VERB FORM TO FILL IN THE BLANK:

We know nuclear engineers …………  with both fission and fusion technologies.

Before the emergency cooling system activated, the temperature level ………….. the critical threshold.

CHOOSE THE CORRECT SENTENCE:

Had it not been for the immediate intervention of the automated system, the reactor ………….. out of control.

If the reactor temperature ………….. the critical level, the system ………….. power output automatically.

WHICH SENTENCE IS CORRECT?

The operator reported that the radiation level ………….. before the reactor startup.

If the engineers ………….. the test earlier, they ………….. the critical cooling system failure.