Question :
In the question given below, four sentences are given which may or may not contain an error. Choose the one that is grammatically or contextually incorrect. If all sentences are correct, mark 'All are correct' as your answer.
1. You will be surprised by the beautiful things you will be able to see.
2. She dressed up as a black cat for the Halloween party.
3. There was a big party at Tom's place last weekend.
4. Their going to get medicines for the diseased as soon as possible.
5. All are correct.