21.
a. This is my friend. Her name’s Lan. She are in grade 9.
b. This is my friend. Her name’s Lan. She’s is in grade 9.
c. This is my friend. Her name’s Lan. She is on grade 9.
d. This is my friend. Her name’s Lan. She is in grade 9.
a. Hang thinks Geography is isn’t easy and fun.
b. Hang thinks Geography are easy and fun.
c. Hang think Geography is easy and fun.
d. Hang thinks Geography is easy and fun.
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