**Quadrilateral KLMN**

Here is a rough sketch of quadrilateral KLMN:

```
K
/ \
/ \
/ \
L-------M
|
|
N
```

**a) Two Pairs of Opposite Sides:**
- KL and MN are opposite sides.
- LM and KN are also opposite sides.

**b) Two Pairs of Opposite Angles:**
- ∠K and ∠M are opposite angles.
- ∠L and ∠N are also opposite angles.

**c) Two Pairs of Adjacent Sides:**
- KL and LM are adjacent sides.
- MN and NK are also adjacent sides.

**d) Two Pairs of Adjacent Angles:**
- ∠K and ∠L are adjacent angles.
- ∠M and ∠N are also adjacent angles.

**Explanation:**

a) Two Pairs of Opposite Sides:
- In quadrilateral KLMN, KL and MN are opposite sides because they do not share a common endpoint. They are parallel to each other and have the same length.
- Similarly, LM and NK are opposite sides because they are parallel and have the same length.

b) Two Pairs of Opposite Angles:
- ∠K and ∠M are opposite angles in quadrilateral KLMN. They are located on opposite sides of the quadrilateral and do not share a common vertex.
- ∠L and ∠N are also opposite angles because they are located on opposite sides of the quadrilateral and do not share a common vertex.

c) Two Pairs of Adjacent Sides:
- KL and LM are adjacent sides in quadrilateral KLMN. They share a common endpoint, which is point L.
- Similarly, MN and NK are adjacent sides because they share a common endpoint, which is point N.

d) Two Pairs of Adjacent Angles:
- ∠K and ∠L are adjacent angles in quadrilateral KLMN. They share a common side, which is KL.
- ∠M and ∠N are also adjacent angles because they share a common side, which is MN.

In summary, quadrilateral KLMN has two pairs of opposite sides (KL and MN, LM and NK), two pairs of opposite angles (∠K and ∠M, ∠L and ∠N), two pairs of adjacent sides (KL and LM, MN and NK), and two pairs of adjacent angles (∠K and ∠L, ∠M and ∠N).