１）"All ___present and all ___ going on well,"our monitor said to the teacher . ,is e,are e,is ,are2) " ____can be done _____ been done,"the doctor said to the patient. l,has l that,has l,have l that,have3) ___food has been kept in his new ridge . reatdealof argenumberofD.quiteafew4)The committee ____ among themselves for over two hours.A.have been arguing B.have been argued請給我解析一下，不勝感激！

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1.c2.b 3.b 4.a1人為復(fù)數(shù)，物為單數(shù)2。ALL THAT 相當(dāng)于WHAT 主語從句做主語，單數(shù)3。 FOOD為不可數(shù)其他幾個修飾可數(shù)4。 主動形式，現(xiàn)在完成進行時