simple present, present continuous, present perfect, present perfect continuous. "they sing a song"
1.(+)
2.(-)
3.(?)
1.(+)
2.(-)
3.(?)
Jawaban:
(+)they sing a song
(-)they don't sing a song
(?)did they sing a song?
[answer.2.content]Jawaban:
(+)they sing a song
(-)they don't sing a song
(?)did they sing a song?
[answer.2.content]