39.
Your Answer is
Correct Answer is A
Explanation
According to the sentence meaning, waving is a sentence adverbial, so it needs to be separated from the main body with a comma, and A is correct.
39.
Your Answer is
Correct Answer is A
Explanation
According to the sentence meaning, waving is a sentence adverbial, so it needs to be separated from the main body with a comma, and A is correct.