phần IX
A
1 D
2 B
3 A
4, E
5, A
B
1, C – big cities
2, B – too many cars on the roads.
3, D –the population
4, C – incapable
5, A – Only big cities have the problem of pollution.
X
1, The roads in Vietnam are too narrow to travel easily.
2, How far is it from your house to the bookstore?
3, Mai used to go to school on foot when she was in primary school.
4, It is very important to obey the traffic rules when using the road.
5, It is ten kilometers from the town to the airport.
6, Two days ago, we were stuck in the traffic jam in over two hours.
7, Most streets in the city centre are congested in rush hour.
8, You used to have a tricycle when you were a child.
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