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Hydrogen peroxide … as a bleaching agent.
Question 1:
Hydrogen peroxide … as a bleaching agent.
A.
used
B.
is using
C.
is used
These questions are from this test. Would you like to take a practice test?
Practice Quiz 106 | B2 – Upper-Intermediate
30 minutes
30 questions
Do test
Some questions from the same exam
She would certainly have attended the proceedings ... .
Our bodies are organized into many different systems, each of which has … function.
It’s the recommendation of psychologists … to associate words and remember names.
The crime rate has continued to rise despite efforts to curb … .
Fire safety in big buildings, … most fire deaths occur, is difficult to achieve.
In 1920 this city … .
… a busy city, it was destroyed by the eruption of a volcano.
Most people don’t object … them by their first names.
Fitness exercises can cause injuries … the participants are not careful.
The nuthatch … seven meters long.
Zoo animals must have a dentist … their teeth.
For his synthesis of ascorbic acid, he … the Nobel Prize.
The algebra of sets … Boolean algebra.
Before …, they used horse-drawn carts.
… was the day before yesterday.
True empathy, … and commitment to a principle, may surpass selfinterest.
Hydrogen peroxide … as a bleaching agent.
… the news from war zones is censored.
The tallest bird in our country … two meters tall.
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… the best car to buy is a Citroen.
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A bat will often spend the daylight hours … upside down.
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… have captured the spirit of freedom as well as her.
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People work for many reasons … .
Farmers look forward to … every season.
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Some other questions you may be interested in
The international student practices English every day. She speaks English … .
Tom’s dog is lost. He drove … through the neighborhood looking for it.
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