The correct answer is A. Hay un profesor con el estudiante.
The sentence says - There is A professor with THE student. In Spanish, the article A is either UN or UNA (depending on the gender) for singular, and UNOS and UNAS for plural. The article THE is either EL or LA, depending on the gender.
Spain lies in the temperate zone it's climate is determined by its unusual world position, and by its continental land mass and high mountainous terrain,producing one of the most diverse and varies climates in Europe
1. Pude
2. Tenía
3. Venía
4. Decía
5. Puso
6. Dio
7. Trajeron
8. Decían
9. Tuvo
10. Pasó
(Hope it helps :D)