Điền giới từ thích hợp:
11/ Is Lan’s birthday . . . . . . . . . . . . . . . . March.
12/ Yen has Math and Music . . . . . . . . . . . . . . . . Monday.
13/ Tom is good . . . . . . . . . . . . . . . . Physics.
14/ What do you often do . . . . . . . . . . . . . . . . recess?
15/ Tom lives . . . . . . . . . . . . . . . . the city, but Mary lives . . . . . . . . . . . . . . . . a farm.
16/ The teacher is standing . . . . . . . . . . . . . . . . the middle . . . . . . . . . . . . . . . . the room.
17/ Cao has to stay . . . . . . . . . . . . . . . . home to take care . . . . . . . . . . . . . . . . his dad.
18/ You’ll give flu . . . . . . . . . . . . . . . . others if you go . . . . . . . . . . . . . . . . school.
19/ It’s hot . . . . . . . . . . . . . . . . the summer, and especially.
20/ We often listen . . . . . . . . . . . . . . . . pop music . . . . . . . . . . . . . . . . night.