СМОТРИТЕ ВЛОЖЕНИЕ! СРОЧНО НАДО

Have you got a mobile phone?

Before mobile phones
B4 Before mobile phones _ _ , you could only call someone Develop
with a phnnc which wan connected ro a phone line.

B4 were developed

B5. mEant

B6 didn't send

B7 have chAnged

B8 don't need

B9. being

B10 used

B11 will become