1.Tom's brother often_____( clean) his room on Sundays.2.Her sister and brother never _____(go)to bed before 10:00 pm.

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1.Tom's brother often_____( clean) his room on Sundays.2.Her sister and brother never _____(go)to bed before 10:00 pm.

1.Tom's brother often_____( clean) his room on Sundays.2.Her sister and brother never _____(go)to bed before 10:00 pm.
1.Tom's brother often_____( clean) his room on Sundays.
2.Her sister and brother never _____(go)to bed before 10:00 pm.

1.Tom's brother often_____( clean) his room on Sundays.2.Her sister and brother never _____(go)to bed before 10:00 pm.
cleans go 追问我有详解哦. 第一个.Tom's brother 是第三人称 on Sundays是一般现在是太 所以用单三式、第二个Her sister and brother 是两个人 所以谓语动词用复数,所以用DO 不用DOES

1. cleans
2. go

cleans
go

clean,go加动词原形

1.cleans 理由:Sunday是复数且人称为单三
2.go 理由:sister和brother是单纯的并列关系且存在never为一般现在时

cleans go 追问我有详解哦。 第一个。Tom's brother 是第三人称 on Sundays是一般现在是太 所以用单三式、第二个Her sister and brother 是两个人 所以谓语动词用复数,所以用DO 不用DOES