Изменить предложение
The results of the experiment (must/to check) before they were shown.

Question

Английский язык: Изменить предложение The results of the experiment (must/to check) before they were shown.

Katzkotareva · Answer

The results of the experiment must be checked before they were shown.Объяснение:This is the sentence related to modal + passive* subject.  ...