【2015·江苏】It is so cold that you can’t go outside _____ fully covered in thick clothes.
--Can I help you with the heavy bag?--______.
That tree, _______ branches are almost bare, is very old.
As a rule, domestic servants doing odd jobs are paid_______.
Why don’t you bring ____ to his attention that you are too busy to do it?
He began to take political science ________ only when he left school.