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Using If / Whether Clauses. Imagine that you are doing research on acupuncture. In addition to getting information from the library and the Internet, you have decided to write to Dr. Robert Hsu, a leading authority in the field, to ask for further information. Here are the questions you wish to ask Dr. Hsu:
1. Is acupuncture a risky medical procedure?
2. 2. Are the needles made of stainless steel or of some other metal?
3. Do the needles hurt when they are inserted?
4. Has the effectiveness of acupuncture in relieving back pain ever been documented?
5. Can acupuncture strengthen the immune system?
6. Does acupuncture use the body's energy to promote healing?
7. Did you study acupuncture in China or in the United States?
8. Have you ever used acupuncture during an operation?
Add one questions of vour own.

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