Although he knew little about the large amount of work done in the field, he succeeded ________ other more well - informed experimenters failed.
The river, ____ are covered with trees, is very long.
He is rather difficult to make friends with, but his friendship, ____, is more true than any other.
— Did you enjoy yourself at the party? — Sorry to say I didn’t. It was ____ a meeting than a party.
— Have you known each other for long? — Not very long, ____ we started to work in the company.
—Has the little boy passed P. E. test? —He has tried twice and the teacher will allow him to have third try.