______ number of boys were swimming in the lake, but I didn’t know ______ exact number of them

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

Since vitamins are contained in a wide variety of foods, people seldom lack of most of them.

Staying in a hotel costs ______ renting a room in a dormitory for a week.

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

When I was a child, I loved to splash through the ______ after rain.

It turned out that we ______ rushed to the airport as the plane was delayed by several hours.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

Had she read the reference books, she would have been able to finish the test.