Choose the option that best complete the gap (s) We should try to help.....

Analyze the question: The sentence is "We should try to help ..... " and we must pick the phrase that correctly fills the gap. This tests the use of the + adjective to refer to a group of people.

Concept: In English, we can use the before an adjective to talk about a whole class of people. Examples: the rich, the poor, the blind, the elderly, the less fortunate. These expressions:

• Take "the" in front.
• Are plural in meaning already, so they do not take "-s". The adjective stays as it is.

Step-by-step solution:

1. "Fortunate" is an adjective, and "less fortunate" is an adjective phrase meaning people who are poorer or worse off.
2. To use it as a noun for a group of people, we write the + adjective: the less fortunate.
3. Check each option: • A. the less fortunates: wrong, because adjectives used this way do not take "-s". • B. less fortunates: wrong, because it has no "the" and wrongly adds "-s". • C. the less fortunate: correct, because it uses the + adjective with no "-s". • D. this less fortunate: wrong, because "this" is singular and makes the phrase sound like one specific person, which would also need a noun.

Answer: The correct sentence is: *We should try to help the less fortunate.

Exam tip: Remember "the + adjective = a group of people," and never add "-s". Think of the poor, the rich, the needy, the less fortunate. If you see an "-s" on such an adjective in the options, eliminate it immediately.