11 (2) Sunday -> on Sunday
(3) did your homework on Sunday.
12 (2) was -> was when
(3) since -> when
13 bought vegetables since yesterday morning.
Hoa bought vegetables was yesterday morning.
bought vegetables yesterday morning.
14 come to my garden since last year.
the students came to my garden was last year.
came to my garden last year.
15 (2) was -> was when
(3) since -> when
16 (2) was -> was in
17 three weeks -> three weeks ago
#\(Cụt\)
#\(yGLinh\)