15.
A. She didn't know her daughter could sing so well.
B. She thinks that she sings better than her daughter.
C. She doesnt like her daughter at all.
D. She herself doesn't have a good voice.
16.
A. Change the T-shirts for smaller ones.
B. Sell T-shirts for her son.
C. Work as an assistant at the store.
D. Make these T-shirts smaller.