| 1. The traffic jam happened ____ a terrible accident. |
1. because of |
| 1. The traffic jam was ____ a terrible accident. |
1. due to |
| 2. The word ____ refers to the female part of a flower. |
2. carpal |
| 2. The word ____ refers to the wrist. |
2. carpel |
| 3. The ____ officer saluted as the ship sailed out to sea. |
3. naval |
| 3. Your umbilical cord was attached at your ____. |
3. navel |
| 4. A ____ resembles a whirlpool. |
4. vertex |
| 4. The point at the top of a pyramid is its ____. |
4. vortex |
