Quizzes: Verb Tense 1

Select the answer that contains the correct tense of the bolded verb.

1) Native to South America, the cashew plant was brought by the Portuguese to India around 1560 and (spread/has spread) east into Asia and south into Africa during the seventeenth century.
2) The Russian Tea Room (was/has been) known as a gathering place for actors, musicians, and other members of the entertainment industry since it opened in 1927.
3) In recent years, physicists (found/have found) a new enthusiasm for exploring many of the questions about quantum theory that were deliberately ignored by its founders.
4) The Manesse Codex, widely acknowledged as one of the most beautiful illuminated manuscripts ever produced, (became/has become a key source of Medieval poetry after it was completed in the mid-fourteenth century.
5) Modern conceptions of the Vikings as either violent brutes or intrepid adventurers owe much to the Viking myths that (predominated/have predominated) since the early years of the twentieth century.
6) Naples, known internationally for its rich history, (played/has played) an important political and cultural role both within and beyond the Italian peninsula since its founding nearly 3,000 years ago.
7) While technological prowess (increased/has increased) immensely over the last half century, the principles of innovation have remained largely unchanged.
8) From its beginnings in the 1920s until its demise more than sixty years later, Bell Laboratories (was/has been)among the most innovative scientific organizations
in the world.
9) Thomas Edison (relied/has relied) on assistants trained in math and science since the theoretical basis for many of his inventions lay beyond his knowledge or interest.
10) Preliminary plans for space travel to Mars (were/have been) been undertaken since the 1950s, with planned voyages typically taking place ten to thirty years in the future.