Title: Chemistry. Sentence 1: My niece has two kids, 12 and 9. Sentence 2: They are both withdrawn and aloof. Sentence 3: Last weekend our two-year old granddaughter Sara visited from NY. Sentence 4: Sara loved the two kids and played with them. Choices: a. The teacher told her she is not ready for this difficult piece yet. b. They were very friendly to her as well, which was a surprise.
b