In our school there ______ a number of books on science and the number of them ______ growing larger and larger.
--- Have you ever to Xi’an, Betty? ---Yes. I there last month.
--- ? ---I’ve just read a copy of newspaper about the new cartoon.
---Has your Chinese teacher been to the USA?--- Yes. She has been there twice.
--- I’ve lived here three years. How about you?--- I have lived here six years ago.
I like the dress very much. It __________ very comfortable.