1. I'm worried about my English.

- Why don't you practice speaking more?

2. I'm worried about English.
- ( )
(Is this correct without 'my' before 'English? What is the difference between #1 and #2? What will be the answer to the question 2?)
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3. I'm worried about my soccer.
- Why don't you practice kicking balls more?

4. I'm worried about soccer.
- ( )
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What is the difference between #3 and #4? Is there any difference between them? What will be the answer to the Question 4?

In both cases, "my" infers you are specifically concerned with your own performance.

2. English speakers may not be plentiful in the country I am going to visit.

4. Soccer is not as popular in the United States.

1. The difference between #1 and #2 is that in #1, the speaker is specifically worried about their own English skills, while #2 is a more general concern about the English language as a whole. The answer to Question 2 would be similar to the answer for #1, suggesting that the person should practice speaking more to improve their English overall.

3. Similarly to #1, the difference between #3 and #4 is that in #3, the speaker is specifically worried about their own soccer skills, while in #4, the concern is about soccer in general. The answer to Question 4 would be similar to the answer for #3, suggesting that the person should practice kicking balls more to improve their soccer skills.