1.①(重庆卷)He refused to communicate with others, even the family members.
②Body language is a means of communication(communicate), through which we can communicate well with others.
2.①Teaching methods vary greatly from school to school.
②a.(2016·全国卷Ⅲ)Skilled workers also combine various(vary) hardwoods and metal to create special designs.
b.(安徽卷)If you come to visit China, you will experience a culture of amazing depth and variety(vary).
3.①I am told that the test will involve answering(answer) questions about a photograph.
②Involved(involve) in the car accident, the driver had no alternative but to stay and wait for the policeman.
③We involve ourselves deeply in environmental protection.
