- Rewrite each pair of sentences into a single complex sentence without changing the meaning 1. He is busy with his studies.
He has to complete his revision before the exam begins.

2. Guy Fawkes Night commemorates and event in England in 1605.
It was the uncovering of a plot to blow up Parliament.

​

Aman lives on the twelfth floor of an apartment building. every morning he takes the elevator down to the lobby and leaves the building. in the evening, he gets into the elevator, and, if there is someone else in the elevator -- or if it was raining that day -- he goes back to his floor directly. otherwise, he goes to the tenth floor and walks up two flights of stairs to his apartment.