Fill in the blank with the most appropriate word.
People can only form new habits when they _________ particular patterns of behaviour.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. have adopted.
- Subjects and verbs must AGREE with one another in number (singular or plural). Thus, if a subject is singular, its verb must also be singular; if a subject is plural, its verb must also be plural.
- The subject of the given statement is "They" which is plural hence, we need to use a plural verb here.
- The first part of the statement is in the present tense hence, the second part will be in the present tense as well.
The chosen option follows the given rules hence, it will be the correct choice.
Correct Sentence:-
People can only form new habits when they have adopted particular patterns of behaviour.