The correct answers would be questions D " Did any of the Japanese or German students learn to speak Navajo" and E " What kind of code did the American Indians use during World War I".  These are the questions that could help the reader understand the military leader's fear, since if the answers are yes they did learn to speak it, and a simple code, (respectively) then it would be perfectly sane to feel apprehension at using the same code again. Options A, B and C are not relevant because they do not contribute to the subject, for example, it doesn't matter how many people spoke Navajo before World War I, what is important is how many can learn it. 
 
        
                    
             
        
        
        
Answer: 1. Audience
2. Chain
3. Litter 
Explanation:
1. The (audience) seemed particularly attentive whenever she was on stage.
2. They pulled the car into an Italian chain restaurant.
3. Even puppies from the same (litter) may react differently when they are ill. 
Note that:
Audience are the listeners in a play film etc.
Litters refers to young animals that are born to a particular parent. 
 
        
             
        
        
        
Plastic, oils from boats, air pollutants.
        
                    
             
        
        
        
Answer:
This is an illustration paragraph 
Explanation:
these paragraphs specific examples are used to clarify support the general statement.
 
        
             
        
        
        
Answer:Many people believe that the dog is man's best friend. Well a coyote is a little different and is not excactly a mans best friend unless he is a farmer. Coyotes can be very helpful to farmers because they scare or eat little rodents like rats or scares off rabbits who might eat your crops. Coyotes can be helpful in many ways.
Explanation:
This is just a summary about coyotes all you have to do is put some ways they can be a mans best friend Or how they can be usefull or bad things about them.