please choose the wrong sentence and then write down the correct sentence

1. A. Was not
2. D. Buy
3. A playing
4. C. Arrived
5. B. Begun

1. My sister were not able to called me last night
2. I saw a beautiul painting at a store yesterday, but i could not buy it
3. Lia played the guitar when her sister was singing a song
4. Mother had finish washing when the guests arrived last night
5. The school meeting has already begin when i entered the room