Nominal sentence practise and vocabulary

Today I am practising nominal sentences as well as learning new words. When making sentences it is not easy to remember the rules that I have learned in my previous lessons, for example if the خَبَر is a noun then its last huruf always takes a  ُor  ٌ, and yet if the خَبَر is a prepositional phrase then the last huruf takes a  ِor  ٍ. I hope I didn't make any mistakes, watch carefully:

1. الْطَالِبُ مَرِيضٌ The boy is sick.
2. الْأُمُّ فِي الْبَيْتِ Mother is at home.
3. الْقُرْآنُ كِتَابٌ مُقَدَّسٌ The Quran is a holy book.
4. الْبَابُ مَفْتُوحٌ The door is open.
5. الْمَرِيْضُ ذَهَبَ إِلَى الْمُسْتَشْفَى The patient went to the hospital.
6. الْمُهَنْدِسُ مُجْتَهِدٌ The engineer is hardworking.
7. آمِنَةُ بِنْتٌ طَيِّبَةٌ Aminah is a pleasant girl.
8. الْكَعْبَةُ بَيْتُ اللهِ The kaabah is the house of الله.
9. هُوَ مِنَ الْصِّينِ He is from China.
10. خَالِدٌ خَرَجَ مِنَ الْفَصْلِ Khalid went out of the classroom.