Rock climbing is _______ great fun. You will get close to _______ nature and take adventures at the same time.
–Who are those people with the banners (标语)? –A group _____ itself the league for peace.
His poor _____ English prevented him _____.
_____ as a candidate for the post of school principal, one must have at least ten years of teaching experience.
Technology has made the delivery of information less difficult, thus _____ information available to more people.
The man in the corner confessed to _____ a lie to the manager of the company.