These engines used being started by hand. But now they are started by electricity

There are many different ways of comparing the economy of one nation with those of another.

Without the life-jackets, most passengers _____ drowned in that accident.

Since fireworks are dangerous , many countries have laws preventing business to sell them.

There was a very interesting news on the radio this morning about the earthquake in Italy.

If the project is finished on time, the federal government won’t award the company further contracts.

The early periods of aviation in the United States was marked by exhibition flights made by individual fliers or by teams of performers at country fairs

The columnist feels sure that who wins the election will have the support of both parties

The prices of homes are as high in urban areas that most young people cannot afford to buy them 

Although almost all insects have six legs, a immature insect may not have any.

Choose the correct answer to complete the sentence. "In the polluted environment, infectious diseases can be passed easily _____ one person to another"

Although she is 103 but, she still does a lot of work in the flat.

Before television became so popular, Americans used to entertain each other in the evening by playing games, saying stories, and singing songs.

 I'm on night duty. When you go to ..............bed, I go to ............ work. 

Choose the correct answer to complete the sentence. "Some scientists were _____ of having falsified the effects of climate change"

The parcel which my uncle sent me from America containing two books and some tapes.

New uses for plastics were found during the 1950’s and 1960’s in medicine, space, research, industrial, and architecture.

The geology professor showed us a sample about volcanic rock which dated back seven hundred years.

The most visible remind of the dose relationship between the United States and France is the famous Statue of Liberty, which stands in New York Harbor.

Although there are new drugs on the market, deaths from malaria are being increasing in some parts of the world

Many small islands in the Indian Ocean are threatened by raising sea levels.