请问两道英语从句题(九年级)请解释理由
1,I'minterestedin_____youhavesaid.
A.allthatB.allwhatC.thatD.which
2,Whatareonshowinthemuseum?
----Somephots____bythechildreninYsshu.
A.tookB.weretakenC.takenD.taking
(正确答案是AD请帮忙解释下理由)
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