câu hỏi Identify one mistake from each sentence below
 
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1. You mustn'tto talk in the class while the teacher is teaching.
A
BC
2. Watching TV is exciting than reading books.
A
B
C
3. We mustn'tpicking flowers in the school garden
A
C
B
4. Things in the shop are as expensive than things in the market.
A
B
C
5. There are a garden in front of my house.
B
C
A
6. Hoi An is famous by its historic buildings, shops, pagodas and houses.