{01}She always allows the children to voice their opinions_________sometimes their opinions are not sound. A.when B.as C.though D.after 解析: 本题选C。 {02}It’ll be a year and a half ______ the next Olympic Games are held in London in 2012. A.since B.when C.before D.until 解析:这题考查句型:It will be+一段时间+before…句意是:要一年半下届奥运会就在伦敦举办了。选C。 本题选C。
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