Fill in the gaps with the correct form of verbs provided.

(a) At present, Bangladesh, particularly Dhaka_______ (become) polluted rapidly.

(b) Outdoor and indoor pollutions _______(cause) death of huge lives each year.

(c) The consequences of sound pollution________(be) really dangerous.

(d) Pure drinking water_________(have) also become rare.

(e) Serious water-borne diseases________(be) very common.