Give the correct form of the words in brackets

III. Give the correct form of the words in brackets.

Traffic jam (1. to be)_______________ a common sight in big cities like Delhi, Mumbai, Calcutta etc. This is due to (2. increase) _______________ population of the metropolitan cities. People from far off places rush towards big cities to (3. earn) _______________as big cities (4. have)_______________many options and possibilities for them. Then there are permanent citizens also. So with the human traffic, vehicular traffic also increases. As the standard of living is (5. become_______________ high everyone wants to (6.purchase)_______________his own car.