1. They were standing in a row.

2. They were standing in a line.
(Are both the same?)

3. They were standing in two rows.
4. They were standing in two lines.
(Are both the same?)

5. Instant noodles are bad for health.
6. Instant noodles are poor for health.
(Can we use 'poor' instead of 'bad' in the sentence? Are both the same?)

7. All are not rich.
7-1. Some are rich, but the others are not rich.
(Does 7 mean 7-1?)

8. Both are not happy.
8-1. One is happy,but the other is not happy.
(Does 8 mean 8-1?)

9. Every person is not healthy.
9-1. Some persons are healthy, but the other persons are not helathy.
(Does 9 mean 9-1?)

The only one to quetion is 6.

Sra

1 and 2 -- mean the same.

3 and 4 -- mean the same.

5 is OK if you ad "your" before "health."

6 is not used.

7 and 7-1 mean about the same thing, but better phrasing would be this:
Some are rich, but others are not.

8 is very awkward.
8-1 is better, but would be best this way: One is happy, but the other is not.

Again, 9 is awkward.
Best phrasing would be this:
Some people are healthy, but others are not.

5 is OK if you add "your" before "health."

1. Yes, "standing in a row" and "standing in a line" generally mean the same thing. Both phrases describe people or objects arranged in a linear formation, with each individual positioned next to one another.

3. "Standing in two rows" indicates that the individuals are arranged in two separate lines, typically with a gap or space between the rows. On the other hand, "standing in two lines" suggests two distinct linear formations without any gap between them. So, the meaning can differ slightly depending on the context.

5. Yes, you can use "poor" instead of "bad" in the sentence "Instant noodles are bad/poor for health." Both words convey a similar idea, indicating that instant noodles are unhealthy or not beneficial for one's well-being.

7. No, "All are not rich" does not mean the same as "Some are rich, but the others are not rich." "All are not rich" simply means that none of the individuals in a given group are rich. It does not imply that there are some individuals who are rich and others who are not.

8. Similarly, "Both are not happy" does not hold the same meaning as "One is happy, but the other is not happy." "Both are not happy" states that neither of the two mentioned entities is happy, without specifying the presence of another entity being happy.

9. No, "Every person is not healthy" does not convey the same meaning as "Some persons are healthy, but the others are not healthy." "Every person is not healthy" suggests that none of the individuals are healthy, while "Some persons are healthy, but the others are not healthy" implies that there is a mix of healthy and unhealthy individuals within a group.