Complete the sentences with the given words in their proper forms:
1. Let’s show ________ love when we can and when people need us. (we)
2.Tomorrow will be my grandma’s ___________ (ninety) birthday. We’ll celebrate it at a restaurant.
3. An abacus was one of the first (calculate) machines.
4. Yesterday Mark and his father had a big (argue).
5. I got up early this morning. ______ , I still missed the early bus. ( luck )
6.Some of the school work is ______( bore ) to Wendy because it is too simple for her.
7.Edison was one of the greatest (invent) in the world.
1. our 2. ninetieth 3. calculating 4. argument
5. Unluckily 6. boring 7. inventors