______ is difficult to learn English.
We all find ________ very interesting to play games.
C. that is
1. I find it frustrating that I can't sing an English song.
I find ______ frustrating ______ ______ in English song.
2. It took me two days to finish my English project.
I______ two days ______ my English project.
3. The girl is eight years old.
She is ______ ______ girl.
4. His suitcase is full of books.
His suitcase ______ ______ ______ books.
5. Mrs. Lin owned the supermarket.
Mrs. Lin was ______ ______ of the supermarket.
_______ is easy for me to learn to ride a bike.