Although it was raining,the farmer is still working in the field为什么前面过去进行时,后面现在进行时

It was _(rain)yesteiday It was ____(rain) last summer It was ______(sun)and__________(rain)yesterday Yesterday it was (rain)and (cloud) was it rain heavily last night改错 it was ( ) and cold last week(rain) It was rain outside哪里错了 Although it was late ,but they went on working.改错 （）it was snowing,（）it was not very cold A.although;but B.although;howeverC.though;but D.though 改错：Although it is raining hard,but they are still walking in the rain. it will be (rain) than it was yesterday 是was it rain yesterday?对了还是did it rain yesterday对呢为什么呢 It was ＿＿＿（rain）yesterday Dld it rain when school was over yesterday It happened ____ (rain)when was at the station When/While it began to rain ,I was watching TV He was halfway home when it began to rain. It was very [ ]〔rain〕用正确形式填空