Although Jane agrees with me on most points, there was one on which she was unwilling to _______.

Mrs Turner told me that she ______ to many cities across China when she was young. 

They__________on the program for almost one week before I joined them, and now we ________on it as no good results have come out so far.

The two friends _____ on the Internet for three hours, and they would go on till the next morning. 

The ___ look on his face suggested that he ____ so.