Well go swimming if the weather ______fine tomorrow.a,is b.was c.will be d.is going to be 为什么不选C而选A As she___the newspaper,granny______asleep.A.read,was falling b.was reading ..fell c.was reading .was falling.d.had promised 为什么选A不选C?都表示正在进行时?how many people does the doctor know who____of the disease.a.are dying b ,is dying c ,has died d.dies 为什么不选D而选A?