When/While it began to rain ,I was watching TV

When/While it began to rain ,I was watching TV i was playing -------it began to rain.(until,as soon as,when,while)i was playing ------- suddenly it began to rain.(until,as soon as,when,while) 关于when,as,while的一道英语题目The students are playing basketball__ it began to rain.A.as B.while C.when 请给出解释. ( ) We were walking along the river _____ it suddenly began to rain.A.as B.while C.when D.then It began to snow ____(when while)the man was walking down the stree.说原因~· We were working in the fields()it began to rain.A while B if C when D thought it was nearly bed time____ Jack began to do his homework a.until b.that c.when d.while 为什么不是强调句 It was not until recently ( ) many people began to realize they were wrong.A when B while C as D that 选什么,为什么? We _____ leave _____ it began to rain ..A.were not going to ,when B.were about to ,whenC.were to ,while D.were about to ,as I was about to go for a walk ___ it began to rain .when while as which 为什么A不是BA when B while C as D whichbe about to do 后不是不能加时间状语吗 it began to rain,句中it如何理解?麻烦好心人回答.while they are talking it began to rain. i had hardly go home when it began to rain. We 什么 football when it began to rain. We _____(play) games when it began to rain. He was halfway home when it began to rain. The workers stopped working when it began to rain.同意句The workers____ ______ ______ when it began to rain. i was just leaving my office_________ the telephong began to ring.when还是while while they were talking it began to rain and Dimitri stayed in Aleko's house until the rain这句话中while they were talking it began to