Пожалуйста Надобно воткнуть слова в пропуски 1) Students show their ..

Пожалуйста
Надо воткнуть слова в пропуски
1) Students show their .. for the teacher by behaving themselves. 2) He always worked hard and was a ... student , and he ... from the unuversity with excellent marks in all the subjects.
3)When did he ... college?
4)We never miss the ... to speak to them.They know so much.
5) Pushkin's ... to the development of the Russian language is really great.
6) He has really improved his ... of mathematics.
7) You should ... your presentation.