Mel's grandmother is in........... hospital, so we went to visit her ............ last night. 

Today’s nuclear fission fuels are the remnants of which used to be a much more active mixture of radioactive and fissionable materials two billion years ago and earlier

Alike other forms of energy, natural gas may be used to heat homes, cook food, and even run automobiles

It was after shortly microscopes were introduced at the beginning of the seventeenth century that micro organisms were actually sighted.

“Did you invest that company, Carol?” “Yes, but now I wish I ____”. 

Air pollution, together with littering, are causing many problems in our large, industrial cities today.

Nutritionists recommend that foods from each of the four basic groups be eaten on a regularly daily basis

Justice is often personified as a blind folded woman to hold a pair of scales.

I dropped out of college after one term and went on traveling around the world instead 

She feels lonely because she doesn’t know many people there. She wishes she ____ more people. 

.......... chair which you are sitting in is broken. 

Many heavy work that was once done by hand can now be done more easily with the help of compressed air.

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

Choose the correct answer to complete the sentence. "Planting trees can contribute to _____ global warming"

“Are we lost?” “I’m afraid we are. If only we ____ a map with us.” 

People with exceptionally high intelligence quotients may not be the best employees since they become bored of their work unless the job is constantly changing

The evolution of fishes is a history of constant adaptation to new possibilities, and a refined of these adaptations.

Government money appropriated for art in the 1930’s made possible hundreds of murals and statues still admiration in small towns all over the Unites States.

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

The midnight sun is a phenomenon in which the Sun visible remains in the sky for twenty-four hours or longer.

Each chemical element is characterized to the number of protons that an atom of that element contains, called it atomic number.