CLEAN : US doctor treated for Ebola in New York to be released: US media

The video provides a brief introduction to a trailer, highlighting its live status in Midland.

What might be the significance of the word 'Trailer' in this context?

• A preview of a movie

• A type of vehicle

• A summary of an event

• A promotional material

In what context do you think the phrase 'Now' is used?

• To indicate urgency

• To suggest a time frame

• To imply a change

• To denote a location