C Judging from the boy's performance作伴随状语，____ he needs more practice is quite clear是主句，_ he needs more practice 是主句主语，is quite clear是系表结构，he needs more practice 这句话不缺成分，所以断定应该是t...
1.Judging from the boy's performance,____ he needs more practice is quite clearA.when
B.what
C.that
D./答案选
D./2.the poor parents spent______ they had suppo...
