The person whois( in charge) of the foctory has (been )ill since last week为什么用括号里面的答案

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Thepersonwhois(incharge)ofthefoctoryhas(been)illsincelastweek为什么用括号里面的答案Thepersonwhois(incharge)ofth

The person whois( in charge) of the foctory has (been )ill since last week为什么用括号里面的答案
The person whois( in charge) of the foctory has (been )ill since last week为什么用括号里面的答案

The person whois( in charge) of the foctory has (been )ill since last week为什么用括号里面的答案
1 be in charge of -- - - - 管理- - -
2 has + 过去动词(been)-----构成现在完成时.