Structure Mini Quiz

The discovery of penicillin, perhaps the most significant medical breakthrough of the twentieth century, was ___.

• an accidental finding
• accidentally finding
• an accident finding
• accidentally to find

Jupiter, the largest planet in the solar system, ___ more than twice the mass of all the other planets combined.

• having
• has
• which has
• it has

In the 18th century, the practice of vaccination ___ by Edward Jenner.

• introduced
• was introduced
• introducing
• introduces

The vast majority of the Earth’s freshwater supply ___ in glaciers and polar ice caps.

• are stored
• stores
• is stored
• storing

The book ___ yesterday has already sold thousands of copies.

• published
• was published
• it was published
• being published

The ___ of the Amazon rainforest has raised global concerns.

• destruction
• destroy
• destructions

• is destroying

Not until the late 20th century ___ the environmental impact of fossil fuels widely recognized.

• was
• has

• is

• has been

___ designed for children, the program also attracts adults who are new to technology.

• While it

• Because it

• Although

• Although it

The city’s historic buildings are being restored ___ they can be enjoyed by future generations.

• so that

• because

• however

• despite

Most meteorologists agree that ___ advances in weather forecasting technology, predicting long-term weather patterns remains challenging.

• while

• however

• because

• unless