B. inggris Sekolah Menengah Atas simple present, present continuous, present perfect, present perfect continuous. "they sing a song"
1.(+)
2.(-)
3.(?)​

simple present, present continuous, present perfect, present perfect continuous. "they sing a song"
1.(+)
2.(-)
3.(?)​

Jawaban:

(+)they sing a song

(-)they don't sing a song

(?)did they sing a song?

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