The roads are ..............(chật hẹp) and .............(ngập nghềnh) so there are a lot of traffic problems here

(a)  

(a)   (tắc đường) is caused by commuters travelling to work

Viet Nam has a huge (a)   (dân số)

I think we should obey .................(những luật giao thông) and ............... (những biển báo giao thông) as well

(a)  

I bought a newspaper and waited next 30 minutes very (a)   ( 1 cách kiên nhẫn)

There are more vehicles, which makes traffic jam more and more (a)   (nghiêm trọng - adj)

It takes nearly 45 minutes to (a)   (đến) my office from my home

You can walk faster than driving a car or (a)   (đi xe buýt) a bus

At least (a)   (nửa tiếng)