In the last few decades, we are no closer to

106. Insomnia does not usually begin as a physical problem. It can affect one’s physical health. a. Insomnia is not usually a physical problem; therefore, it can affect one’s physical health.

b. Insomnia is not usually a physical problem,

yet it can affect one’s physical health.

c. Insomnia not usually a physical problem

can affect one’s physical health.

d. Insomnia is not usually a physical problem,

so it can affect one’s physical health. 107. True narcolepsy is the sudden and irresistible onset of sleep during waking hours. True narcolepsy is extremely dangerous. a. While true narcolepsy is the sudden and irresistible onset of sleep during waking hours and is extremely dangerous.

b. The sudden and irresistible onset of sleep

during waking hours, which is true narcolepsy but extremely dangerous.

c. True narcolepsy is the sudden and

irresistible onset of sleep during waking hours, yet narcolepsy is extremely dangerous.

d. True narcolepsy is the sudden and

irresistible onset of sleep during waking hours, and it is extremely dangerous. 108. There has been much interest in dreams throughout the ages. The empirical, scientific study of dreams is relatively new. a. Despite much interest in dreams throughout the ages, the empirical, scientific study of dreams being relatively new.

b. There has been much interest in dreams

throughout the ages, yet the empirical, sci- entific study of dreams is relatively new.

c. While much interest in dreams throughout

the ages, although the empirical, scientific study of dreams is relatively new.

d. There has been much interest in dreams

throughout the ages, for the empirical, sci- entific study of dreams is relatively new. SET 10 Answers begin on page 108. Replace the underlined portion with the phrase that best completes the sentence. If the sentence is cor- rect as is, choose a. 109. I look forward to welcoming you and having the opportunity to show you around our office. a. I look forward to welcoming you and having

b. I will look forward to our welcome and

having

c. As I look forward to welcoming you and

to have

d. I look forward to welcoming you and have

e. Looking forward to welcoming you and

hoping to have – S E N T E N C E S T R U C T U R E – 2 1