_everything_all right?A Is,sound B Does,sound C Is,sounded D Do sounds

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___everything___all right?
A Is,sound B Does,sound C Is,sounded D Do sounds

选择B
1、everthing做单数名词
2、sound作为系动词

B sound作为系动词

___everything___all right?A Is,sound B Does,sound C Is,sounded D Do sounds