He gave up his job _    he earned much money.

Isle Royale National Park in Lake Superior can only be reached by boat

Despite of many attempts to introduce a universal language, notable Esperanto and Idiom Neutral, the effort has met little success.

Lunar eclipses happen only if the Moon is full, but they do not occur a every full Moon

Let’s go, ________?

Due to the forecast, the tunnel will be finished next year.

Floyd Bennett was a pilot for two of the Arctic expedition of the 1920’s and the first pilot to fly over North Pole.

Composer John Cage, used many unusual objects as instrument in his music, including cowbells, flower pots, tin cans saw blades.

Until Hollywood invented him, Leonardo DiCaprio was practically unknown

Geologists find it useful to identification fossils inrock sample because certain assemblages of species are characteristic of specific geologic time periods.

She sighed with relief when she found out that she has passed the test

The police have been _____ in to deal with the riot. 

Mosquitoes are such fast breeders that it is almost impossible to control them either by draining areas where they breed or to spary them with pesticides

My city stops the flow of water, creating a reservoir and raise flow of water.

Don’t talk in class, ________?

Being a nurse involves being cheerful, working hours, and come home with me smelling of disinfectant

Many hundred years ago, there were many villages and little towns in England.

Mukai Chiaki, the first female Japanese astronaut, ……….. 15 days aboard the space shuttle Columbia in space before it …….. to the Earth on July 23,1994.

Despite its smaller size, the Indian Ocean is as deep the Atlantic Ocean.

Since rats are destructive may carry diseases, therefore many cities try to exterminate them

Most types dolphins live at less twenty-five years, and some species may reach 50 years of age