when the rains begin to call?还有rains为什么有s?

when the rains begin to call?还有rains为什么有s? When will the movie begin?When will the movie begin? When does the unistiy begin. when dose the class begin? when does the class begin?怎么回答 when will the weather forecast begin? When dose the autumn term begin? When they arrived,the meeting _____(begin) when did the Shaghai World Expo begin? Don't stay ( )the tree when it rains.填介词. you know 【 A when the meeting will begin B when will the meeting begin I'm afraid the classhas begun.Don't worry.It ---- until the bell--- .A;doesn't begin; rains B; woA;doesn't begin; rains B; won't begin;rings 英语翻译Water pollution results when substances that are released into lakes,rivers,oceans,etc.stay in the water or build up at the bottom.This form of pollution may also begin in the air if the air is polluted and causes acid rain.When it rains, The film__ [begin] when I got to the cinema. The film_______(begin)when l got to the cinema. The film---(begin)when i got to the cinema. I asked the teacher when the summer holiday would begin.中begin可以换成start吗? Test seven18.only when it rains ______Test seven18.only when it rains ______A)does the river overflowB)the river does overflowC) overflow does the riverD) overflows the river