Cotton fiber, like other vegetable fibers, are composed mostly of cellulose.

A calorie is the quantity of heat required to rise one gallon of water one degree centigrade at one atmospheric pressure.

Protecting Florida’s coral reefs is difficult because some of the corals are very fragile even the touch of a diver’s hand can kill it

Choose the best answer:

 This exercise is _____ than the one we did yesterday.

Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

___________ yet?

Choose the best answer:

A ____ is a book used in school containing text and questions and sometimes having spaces for a student to write answers in. 

Marta being chosen as the most outstanding student of her campus made her parents very happy.

A light year is the distance that light travels in one year calculated by using the speed of 186,284 miles the second as a base.

Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

The neighbor of mine is a____________ smoker. He smokes 30 cigarettes a day.

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

Chọn phương án thích họp (A, B, c or D) đế hoàn thành yêu cầu của câu.

When the company has to close because of economic difficulties he becomes______ .

Balzer, _______ linguistic researcher, reported that approximately 75% of classroom management behavior was nonverbal.

It was Vitus Bering, the Danish sea captain, who discovered Alaska on its voyage to Russia in 1741

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.

It ____________ that Po Nagar Cham Towers were built in the 8th century.

The intent of the Historical Society is to restore old buildings and the increase of interest in the history of the area

Hoa is excited about the (21) _____ activities she is going to do. The Y&Y is having a plan (22)______ the community. She’ll (23) _____ in its recycling program. In joining this program, she’ll collect (24) _____ paper, glass and empty cans. Then she will send them for recycling. 
She hopes that she could save natural resources and earn some money for her school Y&Y in these (25)______ . She also thinks about participating in (26)_____ planting trees and flowers or helping    the street children. 
(26).....

Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

Jane____________ law for four years now at Harvard.

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

____________, he would have learned how to read.

Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

The new magazine about maintenance____________ tomorrow.

Choose the correct answer to fill in the blank. 

I always clean the flat before my mom comes round, but she always finds at least one _______ of dust and says it’s filthy. 

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

My brother stopped____________ two years ago.