Her friendly look made me _____ relaxed. I stood up and tried _____ my idea.
A：feel; express
B：to feel; to express
C：feel; expressing
I often have maths class in the morning. （ ）
将郡县制推广到全国和创设行省制的朝代分别是（ ）
关于城市化的叙述，正确的是（ ）
欧洲文明的发源地是（ ）
