– When Henry (to walk) about in the forest, he (to find) a bear cub. – I (to read) a book at six o’clock yesterday.

(Отметьте один правильный вариант ответа.)
Вариант 1 When Henry was walking about the forest, he found a bear cub. – I was reading a book at six o’clock yesterday
Вариант 2 When Henry was walking about the forest, he was finding a bear cub. – I was reading a book at six o’clock yesterday
Вариант 3 When Henry was walking about the forest, he found a bear cub. – I was read a book at six o’clock yesterday
Вариант 4 When Henry walked about the forest, he found a bear cub. – I was reading a book at six o’clock yesterday