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

Question 1: It is necessary and required that dental technicians and others who work with X-rays limit their exposure to these highly penetrating rays.

A. and required B. and others C. highly D. their

Question 2: In a survey of suburban homeowners, a lawn-mower was rated one of the most important equipments.

A. a lawn mower B. equipments C. In a survey D. the

Question 3: Walking reduces depression and anxiety, lessens stress, self-esteem is raised, and increases energy.

A. self-esteem is raised B. Walking C. lessens stress D. depression

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

Question 6: We haven't received any reply to our letter. It is such an insult.

A. We see it an insult to have received no reply to our letter.

B. We haven't received any reply to our letter yet because it is insulting.

C. We have been insulted by the reply to our letter.

D. We don't find it insulting for not receiving any reply to our letter.

Question 7: Pete had acquired the money through hard work. He was reluctant to give it away.

A. Having acquired the money through hard work, Pete was reluctant to give it away.

B. Although Pete had acquired the money through hard work, he was reluctant to give it away.

C. Having worked hard to earn the money, it couldn't be given away by Pete.

D. Pete had acquired the money through hard work so that he was reluctant to give it away.