The bodies of cold-blooded animals have same temperature their surroundings, but those warm-blooded animals do not.

The teacher’s explanation was so …………. that very few students understood it. 

The Boundary Waters Canoe Area Wilderness and Voyageurs National Park, both ___________ along the border between Minnesota and Ontario, Canada, are two of the most popular canoeing areas in North America.

The pleura that cover the exterior of the lungs and the inner walls of the chest cavity is a elastic membrane.

Hoa is asking Hai, who is sitting at a corner of the room, seeming too shy.
-Hoa: “Why aren’t you taking part in our activities? ______”
-Hai: “ Yes, I can. Certainly”

I would like to send these letters …………………..air mail.

Measles are cured without much difficulty nowaday

I thought your tennis game was a lot better today, Tony.

Johny: _______ ! I thought it was terrible.

Mary: “How would you like to play golf tomorrow?” 

      Jenny: “_____________” 

He  ............  on many subjects at the meeting.

In the sixteenth century, Francois Vieta, a French mathematician, used the vowels “a”, “e”, “i”to represent a unknown number.

Malnutrition is a major cause of death those countries where the cultivation of rice have (been impeded by recurrent rought

The federal government recommends that xpectant women will not only refrain  from smoking but also avoid places where other people smoke

Amphibians are a class of animal as that can live and breed neither land or in water.

It is large island, few people live there, although.

To make out the lost time, we booked direct flight from California to New York.

Every year, tornadoes cause a lot of damages to property and a tremendous lost of human and animal lives

She wishes that we did not send the candy yesterday because shi is on diet.
 

You should know by now that I cannot stand i when my steak is not cooked properly as I always mine well-made .

In the end of the story, Cinderella and prince get married and live happily together.

Because of heavy rain, the game was  ...........  for a few days.