The post office is far here. ______ you can't go there _______ foot A. because; on B. so; by C. so; on
_____does your sister do? She is a nurse.
The noisy boy ______stand up by a teacher.
Are you worried about the coming exam? No, I think the more_____ you are, _____mistakes you’ll make.
I didn’t sleep ______last night. I feel tired now.
When shopping, keep your eyes ______for those energy-saving machines.