Answer the questions and fill the gaps. 1. That --- the main reason why people come to live in cities? a) is bjare c) am 2. Why ... a cin grow ? a) is b)do c) does 3. What ... there in every major city ? b) do c) am 4. Where ... many people who work in the centre live? a) is bido c does 5. What ... the future of big cities? a is bam c) does 7. ... they continue to get bigger and bigger? a) is b) will c) does
