She ______ on a new novel ever since this summer and it is supposed to ______ at the beginning of 2011

He has made another wonderful discovery, _____ I think is of great importance to science.

She_______ this book for 3 years,She______it in 2010.

at is ________ small, we can’t put_______ food in it

The way of life he was used to _______ when he came tostudy in America.