Answer:
1. C
2. A
3. B
Analysis:
1. Tā shì mǎ lì.
她 是 玛 丽。
She is Mary.
In this sentence, the equivalent Chinese character to “she” is tā (她).
2. Tā zhù zài měi guó.
他 住 在 美 国。
He lives in America.
In this sentence, the equivalent Chinese character to “he” is tā (他).
3. Tā shì yī zhī gǒu
它 是 一 只 狗。
It is a dog.
In this sentence, the equivalent Chinese character to “it” is tā (它).