选D,先考试吧就不跟你细说了.回头可以问我He is unable to answer the question about the new text. He ______ it yesterday.A must have previewedB ought to have previewedC ought to previewed D should previewHow many radios will this factory ______ this year?a、multiplyb、measurec、manufacture d、publish帮帮忙吧。最后两题了。。好的，B和C，还有不确定可以发来好了。非常感谢。英语结束了，我该考语文了。。