Question

Выберите наиболее подходящую форму глагола:
1. One thousand year old steel production site (has been unearthed / has unearthed) by an International research team in the remains of the ancient city of Gyaur Kala in Turkmenistan.
2. The ancient steel makers (showed / is showed) considerable knowledge of the steel production process.
3. Huts are (used / is using) as temporary shelters by people.
4. The Antarctic climate with frequent snowstorms (has showed / has been showed) its negative influence on Antarctic explorers’ dwelling.
5. One very early type of housing used by hunter gatherers in central Eu- rope during the Late Pleistocene (was / were) mammoth bone dwellings.
6. Mammoth bone huts, structures built primarily from the bones and tusks from mammoths, (are known / knows) from sites throughout Eastern Eu- rope (Russia, Ukraine, Poland) between about 27,000 and 12,000 years ago.
7. Many of them (contain / had been contained) exotic tools or decorated mammoth skulls and scapulae.
8. The first people (started / was started) building their own dwellings using basic materials such as wood, clay, palm leaves, straw, bamboo and cane, rocks, stones, mud bricks and granite.
9. Most of the houses of the United Kingdom (have / have been) their roof in the form of an inverted V.
10. Fine aggregate fine refers to the size of aggregate (is used / is using) in making concrete slabs and smooth surfaces.

Answer 1

1) has been unearthed
2) showed
3) used
5) were
6) are known
7) contain
8) started
9) have
10) is used