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

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

Mariners are FIRST warned of serious defects or important changes to aids to navigation by means of（）.

—Do the dishes,Mike,or I will tell mum!

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

美国大学是否承认中国的自考学位或成人教育学位？

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.

I remembered the day when World War II finished I was eight or nine at the time , and we heard it ___ when we were at the table

I remembered the day when World War II finished I was eight or nine at the time , and we heard it ___ when we were at the table

Why are many people on restricted or reduced diets?

Civil war or regional conflicts also cause disruption,（）people out of rural areas.