Раскройте скобки и употребите глагол-сказуемое в нужной форме (Present Simple,
Present Continuous, Present Perfect Active Voice). Предложения переведите.
1. While Mrs. Clark …(to cook) dinner her husband …(to work) in the garden.
2. Show me what you …(to hide) behind you back.
3. You …(to be) usually here when something …(to happen).
4. Scientists …(to discover) that, all over the world, millions of frogs and toads are dying.
5. I …(to see) him twice this week.