填空：sometimes it rains ___in Xi'an in summer

Sometimes it is___(rain)here Sometimes it is___(rain)here It sometimes ___ in spring.(rain) Sometimes it___________?用rain填空用什么形式? sometimes it rains 为什么填rains而不填rain? 用所给词的恰当形式填空.She wants ______(buy) a new pen.It's often_______(rain) in summer.Sometimes they_______(not have) lunch at home. look it's ______(rain ) heavily.填空 It s____ that it's going to rain首字母填空 Sometimes it`s___(a)C.Sometimes it`s____(a)O.填空 填空：sometimes it rains ___in Xi'an in summer It rains sometimes可以说It is sometimes rain 现在正在下雨如何说？It keeps raining now.keep为什么要加S look at the clouds.It (rain)适当形式填空 It often__________(rain)in summer.按正确形式填空 it often -----------(rain)in summer 用正确形式填空 填空 they .to my birthday partybecause it ..not come,rain 填空动词 they .come to mybirthday party because it ..rain It's____(rain) soon.用动词的适当形式填空 It was very [ ]〔rain〕用正确形式填空