来自毛涛的问题
【Lastyearlgot__opportunitytotakepartinthecityspeechcontest.A.aB.anC.theD./】
Lastyearlgot__opportunitytotakepartinthecityspeechcontest.A.aB.anC.theD./


【Lastyearlgot__opportunitytotakepartinthecityspeechcontest.A.aB.anC.theD./】
Lastyearlgot__opportunitytotakepartinthecityspeechcontest.A.aB.anC.theD./
b因为o是元音,机会的意思,机会是不可数名词,不能代指.