His politics ___a matter of great concern to his friends.

His politics ___a matter of great concern to his friends. His death was a great l______ to his friends SAT OC 语法~His love of politics led him to volunteer in local He will ()some of his good friends to his party one of his friends 英语首字母填空His death was a great l_____ to his friends. a matter of concern He wrote a letter of ________ (invite) to his friends. He wanted to see one of his friends there. He seemed to have dropped most of his friends. He ____a letter to one of his friends last night It is a matter of concern to 可否给例子?