Question

environmental pollution is a product of modernisation. it--- in metropolitan cities . there ------ a lot of vehicles running ----- the roads.they consume petrol or diesel -------gives out toxic smoke ----- burning .

fill in the blank
1. a. exists b. had existed c. has been existed d. existed
2. a. are b. is c.were d.was
3. a.beside b.along c.besides d. infront of
4. a. beside b.which c.when d.where
5. a.in b. at c. on d. of

Answer 1

1. (a) exists
2. (a) are
3. (b) along
4. (b) which
5. (c) on