1．They made __________ (联系) with headquarters (总部) by radio.
[答案] contact
2．The committee is __________ (组成) of 15 members.
[答案] composed
3．It is one of his __________ (特性) that he never complains.
[答案] characteristics
4．All the team members felt __________ (放松) after the match.
[答案] relaxed
5．He was the only candidate；__________ (因此), he was elected.
[答案] therefore
6．She does a lot of __________ (volunteer) work for the Red Cross.
[答案] voluntary
