Fill in the Blanks

 "come up" means to happen suddenly

"came off" meansto occur or happen

 "catch up" means  to meet 

 "caught on" means accepted or favourite

 "chatting up" means to converse in an easy familiar manner

Compulsive describes behavior driven by an irresistible, repetitive urge. Overeating that feels uncontrollable matches this psychological pattern - doing something repeatedly despite negative consequences.

The Damodar Valley region contains one of India's largest coal deposits, particularly in the Jharia and Raniganj coalfields. This rich coal reserve has been a major source of energy for India, supporting thermal power plants and industrial development in eastern India. The Damodar Valley Corporation (DVC) was established to harness both water and mineral resources of this region for power generation and industrial growth.

This is a peice of advice (for accomplishing a responsibity). And in such cases, we use modal 'should'.

Case of future tense. To refer to future we use either modal 'will' (for certainity) or 'would' (for uncertainity). Words 'do not think' in the sentence shows a sort of certainity, hence, option 2.

In case of a wish, we use either modal 'were' or 'would'.

Verb 'moving' is a movement, and for movements we prefer modal 'upon' (if the platform of movement is changed). But roads are not ment for walking but for riding and driving, and we use preposition 'along' in case of walking.

A sense of certinity is implicit in the sentence. And to show certanity of an action in case of future, we use modal 'will'.

'Fond of' is a phrasal usage which means liking someone or something.

Preposition 'under' and 'below' both show up-down relationship (or relationship of vertical location). But where the distance between two things (nouns) is small, we use preposition 'under', and vice-versa.

Whenever we offer our help to somebody, we use modal 'shall'.