Difficulty: Easy
Correct Answer: so
Explanation:
Given data
Concept/Approach
English uses the pattern so + auxiliary + subject to show agreement with a previous positive statement (correlative affirmation). With the main verb in the simple present ("sings"), we use the auxiliary does for the second clause and place it before the subject: "so does Salim".
Option analysis
so — correct: "and so does Salim." ✅too — usually appears at the end ("Salim does too."), not before the auxiliary.as — would require a different structure ("as does Salim") but is less idiomatic here.thus — adverb of result; not used for agreement with inversion.
Common pitfalls
Final Answer
so
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