1. We should help those who are still struggling(struggled/struggling)for liberation.
2. Great tongues(tongue/tongues)of flame shot up here and there.
3. Luckily, there are only two semesters(semester/semesters) a year.
4. The brochure(小册子) offers a wide choice of hotels, apartments (apartments/apartment) and holiday homes.
5. He put on a pair of short pants(pants/pant) and an undershirt.
6. They needed his help, but equally(equally/equal)they did not trust him.
7. There’s been a big age and experience gap(gaps/gap).
8. It is demanded(demanded/demanding)that all the people leave the building at once.
9. His vocabulary(vocabulary/vocabularies) was sound and his grammar was excellent.
10. Her description(description/describe)of the nature is very clear.
