Question

Ecological problems (A) ______ some of the most important ones. People all over (B) ___________ world are trying to solve (C) _________ problems. During the last two centuries the problem of air and water pollution (D) ________ worse. The more civilization is developing, (E) ________ the ecological problems are becoming. A 1) have become 2) became 3) has become 4) become B 1) the 2) a 3) an 4) – C 1) that 2) these 3) this 4) those D 1) became 2) become 3) have become 4) has become E 1) greater 2) great 3) the greater 4) the greatest Ответ: A B C D E

Answer 1

Ответ:

a 1

b 1

c 2

d 3

e 3

Объяснение: