Fill in the Blanks

Here we need a verb. And none other option than option 2 fits to the blank.

Case of passive voice. In such cases, auxilary 'is' takes third form of the verb. Hence, option 2.

Case of present continuous tense. Auxilary 'is' takes 'ing form' of the verb. Hence, option 3.

This is a genral statement of fact (present). 'To enforce' means 'to give force to'. Hence, option 1.

This is a statement of fact (present). Here, we need positive degree of the verb (singular). Hence, option 2.

Case of present perfect (interrogative case). Auxilary 'has' takes third form of the verb. Hence, option 1.

'To remind' means 'to cause (a person) to remember'. Auxilaries are followed by plural verb. Hence, option 3 eliminated.

Here, we need a verb of being. Option 2 is the correct choice.

Case of present perfect. Here we need third form of the verb. Hence, option 4.

The sentence implies that the rising prices make it unavoidable for both the partners to work. Option 4 means to make (something) necessary or unavoidable.  

Case of passive voice in present perfect. 'Has been' take third form of the verb. Hence, option 2.

It is an imperative sentence, where we need a verb (plural) in present tense, which is 'expose'. Hence, 4.

Gadflies are people who persistently annoy or criticize others to provoke them into action. In politics, gadfly legislators challenge colleagues and spur change. 'Gentle' means mild, 'glorious' means magnificent, and 'grumble' is a verb meaning to complain - only gadfly fits the noun context.

Gratuitous means something given freely without charge or expectation of payment. Museums abandoning 'gratuitous entrance policies' means they stopped offering free admission. 'Gregarious' means sociable, 'glowing' means shining, and 'gluttonous' means excessively greedy - only gratuitous fits the context of paid vs free entry.

Genesis means origin, formation, or mode of coming into being. Night-long cold exposure can be the origin or cause of health problems. 'Generalist' means someone with broad knowledge, 'glossary' is a vocabulary list, and 'grudge' is lingering resentment - only genesis fits the context of causation.