$\underset{I}{\underline{\text{While trying to collect}}} \text{ an envelop } \underset{II}{\underline{\text{from the table, }}} \underset{III}{\underline{\text{Mr.X fell down}}} \text{ and } \underset{IV}{\underline{\text{was losing consciousness}}}$
Which one of the above underlined parts of the sentence is NOT appropriate?
- $I$
- $II$
- $III$
- $IV$