A waited
B sing
C stand
D waiting
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施工前应做好客户资料核对工作。对客户户名、装机地址和客户业务性质不符的,及时反馈、(),积极跟进。
A was listened;was hearing
B listened;heard
C have listened;heard
D listened; heard of
A had been; have seen
B have been; have seen
C had been; had seen
D have been; had seen
A was wrote
B writes
C has writing
D is written