That is all _______ he has done.A.which B.that C.what D.why

That is all _______ he has done.A.which B.that C.what D.why _______ maths is the base of all other sciences.A.That is because B.That is that C.It is that D.Because I am sorry.-_______.A.That is ok.B.Not at all. Everything here is quite all right,except that the food doesn’t agree _______ me. that is all right! OK.That is all. 翻译：is that all? that is all It is that all? That is all she That.is.all. Is that all that is all right与that is THAT IS RIGHT?THAT IS ALL RIGHT? To get the job started,_______ I need is some money.A.only what B.all what C.all that D.only that 请问为什么选择 C 27.These people once had fame and fortune; now _______ is left to them is utter poverty.A.all that B.all what C.all which D.that all _______,the compass was first made in China.A.It is known to all B.We all know C.As is known to allD.Itis known that 22.Is _______ he said it worth believing?A.all what B.what C.it D.that