单选题
Because the workers were new and inexperienced, the manager had to watch them and______ their work closely.
A、
attend
B、
demand
C、
analyze
D、
supervise
【正确答案】
D
【答案解析】
解析：A项attend“出席”；B项demand“要求”；C项analyze“对……进行分析”：D项supervise“监督，管理”。
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