If I ________ an Angel, I would try to make happy all the children. 

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

The first village ................. was not far from the capital. 

Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

A thunder usually follows lightningfive seconds for every mile between flash and the observer.

Can you imagine ............. alone in a very strange country?

Floyd Bennett was a pilot for two of the Arctic expedition of the 1920’s and the first pilot to fly over the Pole.

In 1991, Antonia Novello, the Unites States Surgeon General launched several programs to address particular problem young people have

As the marathon runner reached the half-way mark, he, being hot and was soaked perspiration, stopped to rub himself down with a towel.

Choose the correct answer to complete the sentence. "The Citadel of the Ho Dynasty, _____ is located in Thanh Hoa Province, was added to UNESCO's World Heritage List in 2011"

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

Choose the correct answer to each of the following questions. "Ha Long Bay has attracted millions of visitors _____ come to enjoy its breathtaking views and experience other activities"

All commuters ............. the main highway to get to the center of the city will face delays of up to an hour today because of on-going construction.

............... cheat on the exam have to leave the room.

The children soon forgot that  was them, their parents, who had encouraged to continue their education.

Some of the stiffest competitions the jackals face on the plas of Africa comes from vultures

We are very pleased with Susaneffort – she applies herself very well with the task hand.

Visits to the zoo is a delight to any child

Nowhere he could find good place to study, so he returned to his dorm

Since computer was invented, the work of accountants have been simplified

Our house has been redecorated last week. You can still smell paint when you enter and wallpaper has a striking contrast with the floor