Scientists are always looking for new _____________ of energy. 

Tom and Linda are talking about jobs they would like to choose. 

- Tom: “I think working as a doctor is a challenging job.” 

- Linda: “________.”

The various parts of the body require so different surgical skills that many surgi specialities have developed.

So when Whitman returned to the Pacific, over thousand settler went with him.

The team leader demanded from his team members a serious attitude wtih work, good team spirit, and they work hard.

My father still hasn't really recovered from the death of my mother.

Stuart stopped to write his letter because he had to leave for hospital.

The leader emphasized the need for justice and equality between his people 

The top of the mountain covered snow during winter.

Others believe that both sides would jump at the chance to resume negotiations without delaying .

– Dylan: “I’m thinking of doing some shopping today. Can you recommend anywhere?” 

- Steward: “________________” 

An itch resulting when a nerve that carry pain is only lightly stimulated

Two friends Diana and Anne are talking about their friend Bob’s new hairstyle. 

- Diana: “Bob looks so impressive with his new hairstyle, Anne.” 

- Anne: “______” 

Time is of few count in relation to great thoughts that are as vivid today as when they first passed through author’s minds ages ago

Near equator, the slant of the Sun’s is never great enough to cause temperature to fall below the freezing point .

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

The number of rare animals is decreasing ________rapidly that they are in danger of becoming extinct. 

The first vaccine ever developed was used to combat and fight a smallpox, disease resulting from infection by a virus.

The pioneers raised com as their chief crop beldcause they kept well any season and could be used in many ways.

Dinosaurs are traditionally classified as cold-blooded reptiles, but recent evidence based on eating habis, posture, and skeleton structural suggests some may have been warm-blooded

All the schools throughout of the country underwent the educational reformat.