Complete the sentences with one of the following (a, b, c, d) verb forms.
1. By the time we reached the store where he was, he half the stock.
a) bought; b) was buying; c) had bought; d) had been buying
2. I a lot of new clothes recently.
a) am buying; b) buy; c) have been buying; d) have bought
3. The package you for since June has only just arrived.
a) were looking; b) have looked; c) have been looking; d) look
4. We to the opera at least six times last winter.
a) had gone; b) were going; c) went; d) had been going
5. He looked worn out because he all night.
a) had been working; b) worked; c) was working; d) had worked
6. They him when he tries to cross the border
a) will have been shooting; b) will be shooting; c) will shoot; d) will have shot

If I had a luck to visit Scotland, I would definitely go to a legendary Loch Ness lake. There are numerous legends about the Loch Ness monster, most of which are still popular and not yet disproved. The lake is believed to be connected with the ocean through the underwater tunnel. That explains the fact that the monster regularly gets out of sight.  Some scientists assume that the lake may have served as a breeding pool for these unique animals, but due to the increased human activity in the lake area, it is becoming less attractive to them.

Объяснение:

Задание 2. Измените активную форму глагола на пассивную.

1. Was the mouse caught by them? 2. Will the new bridge be opened by the King?  3. Are the cars made in Korea? 4. How are you treated by your parents? 5. What was the fire caused with? 6. Can these questions be answered by the children?

Задание 3. Измените пассивную форму глагола на активную. 1. They blew off the bridge last month. 2. Spiders catch flies. 3. They cut down all the trees every year. 4. They send him for a doctor. 5. They told  me about it some days ago. 6. They will make the bench of wood.