These gases combine with the moisture in the atmosphere to _________ sulfuric acid and nitric acid.

 ______ I was working in the garden, John was repairing the washing machine.

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Tomorrow ........... my friend's birthday. I ......... some flowers for her.

I am ____ seeing you at a job interview. 

Suzy________ her brain, and finally found the answer.

Choose the correct answer in each sentence.

By  ______________   offices in London, Paris, and Madrid, Sedgehill Ltd. has continued its growth into markets overseas.

The production of tin ore in the United States is  relatively insignificant, ................ less than one hundred tons annually.

Forget all and try your best next time. Lightning never ................ twice in the same place.

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Eco Unite is a non-profit organization ------  to educating the public about environmental issues.

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You can conduct the interviews in Room C ------ you ensure the room is empty by 4 P.M.

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At Mottals Corporation, the first step in the hiring  ____________  is the preliminary interview.

Who was the first person ..............  the South Pole?

To solve the problems of pollution, it is important to identify the ____ of it.

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:

A number of practices at local festivals have come under strong scrutiny in recent years.

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Can you tell me the reasons for ........... the Mother’s Day?

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Our pin-point marketing will maximize your return on investment, and our targeted communication efforts will be   _________ meaningful to your customers when they arrive.

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Mr. Fox was so   __________ of everything his team had achieved that he decided to give a bonus to everyone on it.

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The soccer players usually practice on the main field at Waterbury Park, but they sometimes practice ___________

Choose the correct answer in each sentence.

Our senior consultant, Marc Allen, is always looking for new opportunities, and his analytical and independent nature enables him to take on new and exciting______________.

Teachers can tell their students to use mobile apps like "PIAZZA” to access course materials and also to post questions about specific subjects, all _______ can be done in the classroom or outside the classroom.

I had to be early the next morning, so I _____ myself and left the party