___________ ranks as the 10th leading cause of death in the United States. Globally, an estimated 700,000 people take their own lives annually.
举一反三
- (It was) the (split of) eleven southern (states) from the Union in 1861 that (leading) to the Civil War in the United States.（） A: It was B: split of C: states D: leading
- The two leading causes of death for both men and women in the United States are heart disease and ___________.
- There are _____ states in the United States.
- The Constitution of the United States of America is the Supreme law of the United States.
- There are 50 stars on the national flag of the United States. They represent today's 50 States of the United States.