来自万诰方的问题
【Ifit_____________forhisinvitationtheotherday，Ishouldnotbeherenow．（）A.werenottobeB.hadnotbeenC.shouldnotbeD.shouldnothavebeen】
Ifit_____________forhisinvitationtheotherday，Ishouldnotbeherenow．（）
A.werenottobe
B.hadnotbeen
C.shouldnotbe
D.shouldnothavebeen
