V. Find ONE mistake in each of the following sentences and correct it.
1. Having leisure activities are truly important to the elderly.
A B C D
2. Although she wanted to go to the museum, she decided staying at home.
A B C D
3. Parents are concerned that their kids may be spending too many time on screens.
A B C D
4. Collecting coins is exciting, but it can also be relaxed.
A B C D
5. Cloud watching sound weird, but Hang adores it.
A B C D