He worked all night to revise his thesis.

We are considering a revision of the contract.

My itinerary is long distance.

We watched the sunset while walking on the seawall.

He was called to arbitrate the dispute between the two groups.

I will go to watch a boat race on the weekend.

This curriculum is very difficult.

He measured the size of the room.

The original text of this novel was written at the beginning of the 19th century.

Reducing energy consumption helps prevent global warming.