( B )1.___you___the volleyball game next Tuesday?A.Do;watch BAre;going to watch C.Did;watch这道题为什么选C 写出原因这道题为什么选B 写出原因

( B )1.___you___the volleyball game next Tuesday?A.Do;watch BAre;going to watch C.Did;watch这道题为什么选C 写出原因这道题为什么选B 写出原因 ___you___the flowers?Yes,I___them last night.A Have;watered;watered B Did; water; watered我怎么觉得这两个都可以选啊 -___you___the e-mail to your friend?-not yet.l'm busy these days.(did;send,will;send,have;sent) - ___you___the Beatles'story?- Yes.And their songs are popular.A.Did ；hearB.Do ；listen toC.Have ；heard ofD.Have ；listened to 去括号 1.-[-(a+b)]+[-(a-b)] 1.若a-b>0,b 求值：1.√1/b^2 (b 四道公式,求高人1.(a+b)(a+b) 2.(a-b)(a-b) 3.(a-b)(a+b) 4.(a+b)(a-b) 1.已知b 1.已知-b 1.若b 分式计算：[(a-b)/(a+b)-(a+b)/(a-b)]/b/(a+b)+b/(a-b)1.[(a-b)/(a+b)-(a+b)/(a-b)]/b/(a+b)+b/(a-b)的答案是0么?我做出来分子全能约掉的.2.[1/（1+1/x）+1/（1-1/x）]/{[1-1/(x+1)]/[1+1/(x-1)]} b b, b b (b, B