When I was a secretary, the boss often made me to stay in office in the evenings.

The duty of the police is the maintains the law and order

When the Panic of 1857, some us citizens who had been rich or comfortable became poor while few others, capitalizing economic shifts, became richer.

Needles are simple look tools, but they are very relatively difficult to make.

Conservation organizations help erfor to preserve the ecology of an area by keeping of endangered species

A coral reef, a intricate aquatic community of plants and animals, is found only warm, shallow, sunlight seas

The United States became independent ________ England in 1776. 

The composer Verdi has written the opera Aida to celebrate the opening of Suez Canal, the opera was not performed until 1871

Upon reaching destination, a number personnel is expected to change their reservations and proceed to Hawaii

Protecting Florida’s coral reefs is difficult because of the corals are very fragile even the touch of a driver’s hand can kill it .

Ethics is the branch of philosophy that deals with the values of life in a coherent, systematical , and science manner.

Acquisition certain specific skills can be facilitated from general awareness, education of novel situations

After analyzing the steep rise in profits according to the report, it was convinced that the analyses were correct

Choose the best option:

When people ____, they speak to God in order to give thanks or to ask for his help.

A professor of economy and history at our university developed new theory of the relationship between historic events and financial crises

My plan is similar ________ yours, but it is different ________ Ken’s. 

In the 1920s, Tulsa had a higher number of millionaire than any other U.S. city.

The weather in the southern states ………….. very hot during the summer.

Though he did not develop sign language, Laurent Clerc brought on America from France

Three fifths of the land in this area .......... used for community purposes. 

The professor is thinking to go to the conference on conservation next month.