They haven't decideed if ( )
问题描述:
They haven't decideed if ( )
A will they take a picnic B they take a picnic C they 'll take a picnic D they would take a picnic
答
C they 'll take a picnic
宾语从句,语序用陈述句语序,时间用将来,因为haven't decideed 是现在,决定的是将来的动作.