A.
29/ I often have dinner at seven o'clock.
30/ Which is bigger Ho Chi Minh City or Ha Noi?
31/ Why don't we go to Huong Pagoda?
32/ Lan usually listens to music in her free time.
B.
33/ Minh should study hard.
34/ Your sister should go to the dentist.
35/ You shouldn't cut so many trees.