Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word that best fits each of the numbered blanks.

Wind is a clean source of renewable energy (2)_______ produces no air or water pollution. And since the wind is free, operational costs are nearly zero once a turbine is erected. Mass production and technology advances are making turbines cheaper, and (3)_______ governments offer tax incentives to spur wind-energy development.

Drawbacks (4)_______ complaints from locals that wind turbines are ugly and noisy. The slowly rotating blades can also kill birds and bats, but not nearly as many as cars, power lines, and high-rise buildings do. The wind is also variable: If it's not blowing, there's no (5)_______ generated.

(Adapted from <https://www.nationalgeographic.com/>)

 

Wind is a clean source of renewable energy (2)_______ produces no air or water pollution

WORTH COLLECTING

Would you be worried if your classmate told you that he was a philatelist? Would you call a doctor or call the police? Actually, there is no reason to be concerned. A philatelist is just a person who collects stamps!

Stamp collecting has been around for well over 150 years. People began collecting stamps soon after adhesive postage stamps (stamps with glue on the back) were introduced in London in 1840. Today, according to Boy’s Life magazine, stamp collecting is the most practiced hobby in the world.

Some people collect stamps just for fun. These people may just want to collect stamps with animals or famous people on them. Or maybe they want to collect all the stamps issued by one particular country. Other people collect stamps that they think will be valuable down the road. Such collectors ask three questions to determine if a stamp is worth collecting and what its value might be.

First, how many of a particular stamp were made? Next, how popular is the stamp? Finally, what is the condition of the stamp? If a stamp has a low print run, a popular picture or design, and is in excellent condition, this stamp may be worth a lot of money. In 1980, a one-cent British Guinea stamp issued in 1856 went for $935,000!           

(Source: Reading Challenge 1)

I usually give __________ the common stamps to my friends.

My brother started working for that company in 2006.

If we do not take steps to protect the world’s wild life, many species of birds and animals are likely to __________ completely.

We suggested a lot of things, which were all rejected.

Everything we __________________________________________________________.

The headmistress has had to retire because of her old age. We all admire her. (begin with: The headmistress we …)

The film __________ on television last night wasn’t very interesting.

Anna and Jack are talking about the measures to protect the environment.

Anna: I think decreasing the use of fertilizers for farming should be encouraged.

Jack: "__________"

I talked to the man last night. He was very kind. (use to whom)

→____________________________________________________________________.

The fence surrounding our house is made of wood.

The fence which ________________________________________________________.