第十题?为什么用as而不用while?

第十题?为什么用as而不用while? Strike while the iron is hot.为什么用while而不用when The mother didn't know who to blame for the broken glass as it happened while she was out.为什么用who 而不用whom啊? 第十题,为什么用as,在句中做什么成分? While the children have fun,parents can take dance lesson on the beach.为什么用while而不用when? she to read english for a little while为什么用 to read 而不用 read呢 You like singing ________ she likes dancing为什么不用but 而用while whwn the police arrived the aline left the ground 为什么用when而不用while what happend while Linda was on the telephone 中while是否可以写成when 为什么这里用while而不用when Jay Chou is famous as a talented singer.为什么不用for,而用as呢? he bought many things his stay in Beijing.A,during B,when C,while D,as为什么是his,而不用he在告诉我什么情况下用 during,when while as Let's go out while the sun is shining.趁还有太阳的时候我们出去吧!这里为什么用while而不用when呢? i was doing my homework when a boy rushed into the classroom为什么不用WHILE,而一定要用WHEN the library will remain open while repairs are being done为什么要用WILL REMAIN而 不用remaining? How can you expect your children to be truthful ____ you yourself tell lies为什么用when而不用while While the other boys and girls were playing on teh playground,she alone remained in the classroom reading.请问这里为什么不能用as,而用While呢? _is well-known to us all,man can conquer nature.前面为什么用as而不用 it?用AS而不用IT? Most people speak English as a second language.句中为什么用a,而不用the.