Choose the correct answers. 1 Khan's behavior demonstrates his keen and unique perception. Which word is a synonym for unique? regular intelligent rare popular 2 Many people might be afraid to confront a snake, but Khan wasn't. Which word is an antonym for confront? avoid oppose challenge play with 3 Which is the best combination of the two sentences? Khan saw the snake.Nika was the target of the snake. Khan saw the snake who was the target of Nika. Khan saw the snake that was targeting Nika The snake saw Khan who was targeting Nika. Khan saw the snake that Nika was the target of the snake. 4 Which sentence is correct? The researchers which are studying animal behavior work in a lab. The researchers when are studying animal behavior work in a lab. The researchers whose are studying animal behavior work in a lab. The researchers who are studying animal behavior work in a lab.

## Step1<br />The first question asks for a synonym of the word 'unique'. A synonym is a word that has the same or nearly the same meaning as another word. The word 'unique' means being the only one of its kind; unlike anything else. Among the options, 'rare' is the closest synonym to 'unique' as it also implies something that is not common or usual.<br /><br />## Step2<br />The second question asks for an antonym of the word 'confront'. An antonym is a word that has the opposite meaning of another word. The word 'confront' means to face or deal with something directly. Among the options, 'avoid' is the opposite of 'confront' as it means to stay away from something.<br /><br />## Step3<br />The third question asks for the best combination of the two sentences: "Khan saw the snake. Nika was the target of the snake." The best combination should clearly and logically connect the two sentences. The sentence "Khan saw the snake that was targeting Nika" is the best combination as it clearly indicates that the snake was targeting Nika and Khan saw it.<br /><br />## Step4<br />The fourth question asks for the correct sentence among the given options. The correct sentence should use the correct relative pronoun to refer to 'esearchers'. The sentence "The researchers who are studying animal behavior work in a lab" is correct as 'who' is used to refer to people and it correctly links the researchers to their action of studying animal behavior.