问题
Many of the things that_________ thought useless_________ man today.[ ]
A: used to be; used to serve
B: were used to being; are used to serving
C: were used to be; are used to serve
D: used to be; are used to serve
B: were used to being; are used to serving
C: were used to be; are used to serve
D: used to be; are used to serve
正确答案是：
同类题型
ou phoned me, I was having a meeting; how I wish I _______ your call.
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