Ответ:

Решение:

  1. The seas surround Great Britain are not deep.
  2. The USA is surrounded by the Pacific Ocean and the Atlantic Ocean.
  3. Many rivers in the USA are connected by the canals.
  4. The road connecting these cities is very important.
  5. The USA has a highly developed industry.

Ответ: surround; is surrounded; are connected; connecting; developed.