Complete each of the following sentences with the correct answer (A, B, C or D). Identify your answer by writing the corresponding letter A, B, C or D on your answer sheet.

You need a passport to cross the _________between Mexico and the United States.

One (1)______(CHARACTER) of the modern world is that people increasingly find themselves living side by side with people from other cultures.

It is very difficult to succeed in the music business; nine out of ten bands that release a first record fail to produce the second. Surviving in the music industry requires luck and patience, but most of all it requires and intricate knowledge of how a record company is functioned. The process begins when a presenter of a company’s Artist and Repertoire (A&R) department visits bars and night clubs, scouting for young, talented bands, After the representative identifies a promised band, he or she will work to negotiate a contract with that band. The signature of this recording contract is a slow process. A company will spend a long time to investigate the band itself as well as current trends for popular music. During this period, it is important that a band reciprocates with an investigation of its own, learning as much as possible about the record company and making personnel connections within the different departments that will handle their recordings.

We walked down the narrow track in single (1)______, taking care not to slip on the wet surface.