Had I known the carpenter was going to take three days to show up, I ___________ the materials and done the work myself. It would be finished by now. 

Don't leave here, _    ?

The 6-year-old boy resembles to his mother somewhat more than his older brother does.

Choose the correct answer to complete the sentence. "Having seen people suffer global warming consequences, people decided________ carbon footprints."

You'll be at home tonight, _    ?

David is talking to his friend, _    ?

Choose the correct answer to complete the sentence. "Global warming occurs ______ the greenhouse gases in the atmosphere trapthe heat from the sun."

Prevented the soil from erosion, the trees are planted by the farmer many years before were which stopped the flood from reaching his house.

Choose the correct answer to complete the sentence. "These companies were accused of having released a ____ amount of carbon dioxide into the atmosphere."

They asked us, Henry and I , whether we thought that the statics had been presented fairly and accurately.

The development of professional sports in the United Stated dates back to nineteenth century.

..................United States is ...................world's biggest consumer of energy. 

Although they reflect a strong social conscience, Arthur Miller’s stage works are typical more concerned with individuals than with systems.

................... blue is .................. color I like. 

Choose the correct answer to complete the sentence. "These companies were accused _____ having released a large amount of carbon dioxide into the atmosphere."

Choose the correct answer to complete the sentence. "Humans now have to suffer the effects of global warming ______ having treated the environment irresponsibly"

Never before has so many people in the United States been interested in soccer.

It took the mayor over an hour explanation to the other members of the board why he had missed the last meeting.

They agreed with waiting for me if I was late.

Somehow without my noticing, my wallet had been disappeared

The number 8.5 is an example of a “mixed number” because it is composing of an integer and a fraction.