Choose the best answer among A, B, c or D that best completes sentence: Biologists still have ____ real idea how many  species of living things exist on Earth.

Choose the correct answer to each of the following questions. "People ______ that Africa was most likely losing $26m in tourism revenue a year."

To tell the truth, Aim frightened ________ ghosts.

I’ve got __________ money to lend you now. I think you can ask Lyn for some

Communist is the highest form of   .................

At the___________________ level, you can join three-year or four-year colleges.

Choose the best answer:

She has been talking to somebody ............. the telephone for two hours. 

Choose the correct answer in each sentence.

Delegates from the industry's most widely   ______________ social media marketing firms will speak at next week's summit.

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined bold word(s) in each of the following questions: 

Many organizations have been involved in drawing up the report on environmental campaigns.

We had planned to spend the summer in Greece, but ____ had obviously decided otherwise.

All rubbish and sewage has to be _________ treated before being discharged into seas and rivers.

Can you make a ..................... estimate of how much our expedition in the desert may be?

Choose the correct answer in each sentence.

By the time its weeklong promotion was over, Polk Mobile  ______________  to sell almost its entire inventory of Kelstra smart phones.

I didn’t .................. to see my aunt when I was in Paris.

There is a lot of information on the Internet, but it is difficult to know how much of it ............................enough to trust is.

Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions:

I told you clearly and definitely not to write your answers in pencil, Smith!

________ is destroying larger areas of tropical rain forests.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best option for each of the blanks.
People’s fingernails and toenails, according to a recent study, are nowadays growing more quickly. Research (35) _____ out at the University of North Carolina indicates that the speed at which human nails are growing has increased by (36) _____ 25 per cent over the last 70 years. The results of the study show that the (37)_____ human fingernail now grows about 3.5 mm a month, (38) _____ just 3 mm seven decades ago. Toenail growth, (39) _____ only about 2 mm per month, was also up on the figure (40) _____ in a similar survey done 70 years ago. Researchers (41) _____ the rapid increase down to changes in lifestyle, particularly the greater awareness of the importance of regular exercise and a healthy diet. This, they point out, is in (42) _____with similar trends in the height and weight of present-day adults. Interestingly, it appears that nails have a propensity to grow fastest (43) _____ warmer conditions, with the quickest growth rate among young people, and men. The fastestgrowing nail is on the middle finger while that on the little finger is (44) _____ the slowest, at only a fraction over 3 mm each month.
(44)..............................

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined bold word(s) in each of the following questions: 

The giraffe is conspicuous in the grasslands because of its long neck.

 __________ the cold weather, my family still managed to go for a pinic.

This campaign for protecting endangered species appeals more than 20__________.