Which one of the following is the correct meaning of -
 The study of human behaviour and societies:

Choose appropriate arcles for the given sentence:
 ____ heavy rainfall last week was ___ disaster to crops that were already in ___ dismal state.

Change from Assertive to Negative:
He is cleverer than me.

Select the most appropriate option to complete the given sentence.
One must learn to __________ a line between one’s private and professional life.

She invited everyone ______Tom.

Choose the correct option from Assertive to Exclamatory transformation for the sentence given:
 I wish I had wings of a dove.

Select the appropriate modal for the expression given:
 If you do that again you ______ be punished. (threat)

Replace the underlined part of the sentence with one word from the options given below:
 John is a person who collects stamps.