下面括号里的两种表述分别编为四组，恰当的一组是 （1）赵院长总保持着学者的风度，（①脊背挺直，面容和蔼②挺直的脊背，和蔼的面容），金丝眼镜后面一双含笑的眼睛，头发梳理得很整齐。（2）细碎的阳光透过窗玻璃洒进来，给人一种迷离的感觉。（③神思袅袅④袅袅神思）遂飘到了瓦尔登湖。

It __________ me that she just expects me to help, but I had so many things to do today

_____ no need to worry about the problemThe government has promised tohave clean water _____ to us from door to door

She ought to stop working; she has a headache because she ________ too long

When I was passing the Town Hall, I heard the clock ______ twelve.