**Introduction:**
In this problem, we are given a group of singers standing in line on a stage. We need to determine the positions of the singers based on a set of given conditions.

**Given Conditions:**
1. I.D is not right to C.
2. F is not standing beside G.
3. B is not left of F.
4. E is not left of A.
5. A and D have one person between them.

**Solution:**

Let's analyze each condition and determine the positions of the singers accordingly.

**Condition 1: I.D is not right to C.**
This condition implies that I cannot be immediately right to D or vice versa. Therefore, the possible positions for I and D are as follows:
- I _ D
- D _ I

**Condition 2: F is not standing beside G.**
This condition implies that F cannot be immediately left or right of G, and vice versa. Therefore, the possible positions for F and G are as follows:
- _ F _ G _
- _ G _ F _

**Condition 3: B is not left of F.**
This condition implies that B cannot be immediately left of F. Therefore, the possible positions for B and F are as follows:
- _ B _ F _
- _ F _ B _

**Condition 4: E is not left of A.**
This condition implies that E cannot be immediately left of A. Therefore, the possible positions for E and A are as follows:
- _ E _ A _
- _ A _ E _

**Condition 5: A and D have one person between them.**
This condition implies that there is exactly one person between A and D. Therefore, the possible positions for A and D are as follows:
- _ _ A _ D _ _
- _ _ D _ A _ _

Based on the given conditions, we can conclude that the possible positions for the singers are:
- I _ D _ _ _ _
- _ _ _ I _ D _

- _ F _ G _ _ _
- _ _ _ G _ F _

- _ B _ F _ _
- _ _ _ F _ B _

- _ E _ A _ _
- _ _ _ A _ E _

- _ _ A _ D _ _
- _ _ D _ A _ _

Therefore, there are multiple valid arrangements of the singers on the stage based on the given conditions.

Not determined i.e either F or G