In his famous domes, architecture Buckminster Fuller utilized thousands of simple equilateral triangles linked together.

How much times did Rick and Jennifer have to do the experiment before they obtained the results they had been expecting?

We can’t hear you at the back. erhaps you could ________ up a bit?

Identify one underlined part in each sentence that needs correcting.

One of the popular apply used in smartphones at present is voice recognition.

My sister attends an university in the Midwest which specializes in astrology.

Choose the best answer:

What can we do to spend less ............. lighting?

The journalist has not finished the article on the negotiation already.

 Jimmy has tried twice, and now he will give it ______ third try. 

The students in the dormitories were forbidden from going out after 11:30 p.m., unless they have special passes.

The composer Verdi has written the opera Aida to celebrate the opening of the Suez Canal, but the opera was not performed until 1871 .

Choose the best answer:

I see him ............. my house every day.

I advised him about the high ceilings in the house but he took no notice and hit his head five times.

Industrialist Henry Ford introduced assembly-line techniques into the manufactures of motor vehicles.

Identify the error in each sentence: Not only (A) did Lan spend (B) all her money (C) but also she borrowed some (D) from me.

Ancient people made a clay pottery because they needed it for their survival.

Identify the one underlined word or phrase that must be changed in order for the sentence to be correct.

At the awards banquet, the philanthropist was recognized for his generosity and careful in aiding the poor.

If I were like you, I’d spend a bit more and buy the hardback version of the book.

Concorde can fly across the Atlantic without re-fueling and carrying 14 tons of freight.

A driver's license can ____________ from the Licensing Bureau at the corner of ' Pine Street and 5th Avenue.

Everyone can learn how to swim, _______? 

Sometimes it is ________ to find suitable books for our children.