2.how much is this pair of shoes.
3.Mai is the youngest in her family.
4.Her sister is good cook 
5.They think hat it is not easy
6.i prefer listening to music to watching tv
7.No one in his class more intelligent than Lap
8.Can you tell me how West lake?
9.i don't know
10.i don't understand

1 How much does this pair of shoes cost
hoặc
  How much is this pair of shoes.

2. How much does this pair of shoes cost
hoặc
  How much is this pair of shoes.
3.Mai is the youngest in her family.
4.Her sister is good cook 
5.They think hat it is not easy
6.i prefer listening to music to watching tv
7.No one in his class more intelligent than Lap
8.Can you tell me how West lake?
9.i don't know
10.i don't understand

xin lỗi nha 
Câu 3 phải là
Mai is the youngest person in her family.
Câu 4 phải là
Her sister is good at cooking 

.how much is this pair of shoes.
3.Mai is the youngest in her family.
4.Her sister is good cook 
5.They think hat it is not easy
6.i prefer listening to music to watching tv
7.No one in his class more intelligent than Lap
8.Can you tell me how West lake?
9.i don't know
10.i don't understand