用适当的连词填空1.their frist idea was （）he had hidden it 2.that is

用适当的连词填空1.their frist idea was （）he had hidden it 2.that is exacty（）i hope3.the question is（）is responsible for it4.what i want to know is （）we should set off tomorow5.do you have any idea（）is actually going on in the classroom?6.elephants have their way to tell the shape of an object and()it is rough or smooth7.i was surprised by her words .which made me recognize ()silly mistakes i had made8.are you still thinking about yesterday's game?oh.that's()makes me feel excited9.i read the story in some book or other ;does it matter ()book it was?10.parents should understand it clearly ()important education is to their children