Choose the best answer from the four options given (A, B, C, or D) to complete each sentence.

Our survey  suggests that customers prefer to see the _________size of the cereal pieces on the box.

The A.I. expert wanted to have his assistant .............  the newly made robot.

I have never seen .........   festival in my life.'

“What is it?” – “We don’t know until ............  at it under a microscope.”

A  lot  of  generous businessmen have ______valuable  contributions to helping needy people.

Early radio was called the “wireless” because radio uses invisibly waves to carry information.

- Salesgirl: “Can I help you? We’ve some new shirts here.”

Customer: “OK, thanks.  ..........   ”

This list is comprised of thousands of ................. to various magazines, including computers, automobiles, garments and electronics.

My mother was worried________ when it passed midnight and my brother still hadn't come home.

Lisa is asking Charles for the permission to use his dictionary.

Lisa: "Do you mind if I use your dictionary?" Charles:"  ...............   ."

Choose A, B, C, or D that best completes each sentence.

Education _____ to be the most important element to develop a country.

Choose the best answer:
This student expected_______ the first winner of the Grand Prix.

The Library of Congress, located in the nation’s capital, houses history documents and photographs as well as most books published.

Choose the best answer:

People tend to work hard at this ......... of life.

We are sorry to announce that we will not . ............any credit cards starting next year since a cash deposit is required.

He owed his success not to privilege but to self-education and a driving desire for _______.

 Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following questions: 

He decided not to buy the fake watch and wait until he had more money. 

Many small islands in the Indian Ocean are threatened by raising sea levels.

How to protect children web fans from unsuitable material online while (1) ________ them to use the Internet has long been discussed in the U.S.
For some parents, the Internet can seem like a jungle, filled with danger for their children. But jungles contain wonders as well as hazard and with good guides, some education, and a few precautions, the wilds of the Internet can be safely (2) ________. "Kids have to be online. If we tell our kids they can't (3) ________ the Internet, we're cutting them off from their future," said an expert. 
Most kids have started to use search engines. Many of them are great for finding tons of interesting Internet sites, and they can also (4) ________ places where you might not want your kids to go. There are search engines (5) ________ just for kids. A certain software contains only sites that have been selected as safe. The most popular way to limit access would be to use what is known as a "content screener". But this can't be wholly (6)________, and the best thing parents can do is to talk to their kids and let them know what is OK or not OK to see or do on the Internet. Another way is that mum or dad is nearby when the child is surfing the Internet. 
A few other tips: - Don't put the PC in a child's room but keep it in an area where mum or dad can keep (7)________ things. That also makes the Internet more of a family activity.
- Ask your child (8) ________ he or she has been doing and about any friends they make online.
- Tell your child not to give on-line strangers (9) ________ information, especially like address and phone number.
- And tell your children never to talk to anyone they meet online over the phone, send them anything, accept anything from them or agree to meet with them (10) ________ you go along.
(4)............................

The constant power failures made it difficult ________ a computer.

In the whole I agree with what you’re saving, but I’m not sure about your last point.