来自马松林的问题
Who_hasthesameideaasitwilldoitinthisway.AwhoBthatCwhomDwhich
Who_hasthesameideaasitwilldoitinthisway.AwhoBthatCwhomDwhich


Who_hasthesameideaasitwilldoitinthisway.AwhoBthatCwhomDwhich
Who_hasthesameideaasitwilldoitinthisway.AwhoBthatCwhomDwhich
Bthat,只有一种选择Whothat,其他没有那样用的