Look! Tiantian and . A. is singing, dance B. is sing, dance C. is singing, dancing
---Mr. Black, I find ______ difficult to play the piano well. ---Oh, I think you just need to practice more
The old woman has no children. She lives by________.
_______ has donated much money to the charity .
Some of the CDs belong to her, while the rest are ________.
I like junk food very much, but I eat ______ only once a month.