Who are happier, modern people or people in the past?  

Under stress, people's blood pressure goes up, _________their race or sex.

People wandering in the fairground or park area（）wear a uniform.

Since the burning or combustion takes place within the engine itself, the engine is known as （）.

Virginius would feel more or less guilty when he______.

Virginius would feel more or less guilty when he _____.

Duty is an act or a course of action that people __________you to take by social customs, law or religion.

Duty is an act or a course of action that people ______you to take by social customs, law or religion.

---Would you like tea or coffee?
---___ , thanks.( )

Why are many people on restricted or reduced diets?

Should it appear that war or blockade would prevent the vessel from safely reaching the port of destination and / or discharging the goods thereat，the Carrier（）.

基础教育阶段英语课程的目标是以学生语言技能、（）、（）、（）和（）的发展为基础，培养学生英语综合语言运用能力。