поставьте глаголы в правильной форме чтобы закончить предложения в настоящем совершенном времени: 1. I have (shake) hands with a famous actor. 2. We have just (take) a stroll and are feeling hungy now. 3. They have (explore) the cave twice, but haven't found a sings of pre-historic human activity there. 4. She has never (perform) in a concert before. 5. Have you (taste) our homemade jam.