6. Mr. Wilson hopes to avoid surgery. He will not agree to the operation___he is convined that it is absolutely necessary A. in the even that  B. only if  C. if  D. unless 7. Some English words have the same pronunciation ____they are spelled differently, for example, deer nad dear A. unless  B. even though  C. since  D. only if 8. Olives arc a principal source of cooking oil, but by no means the only source.____ olives, cooking oil can be extracted from coconuts, corn, and sunflower seeds A. Because of  B. In spite of  C. In care of  D. In addition of

6. Mr. Wilson hopes to avoid surgery. He will not agree to the operation___he is convined that it is absolutely necessary

A. in the even that  B. only if  C. if  D. unless

7. Some English words have the same pronunciation ____they are spelled differently, for example, deer nad dear

A. unless  B. even though  C. since  D. only if

8. Olives arc a principal source of cooking oil, but by no means the only source.____ olives, cooking oil can be extracted from coconuts, corn, and sunflower seeds

A. Because of  B. In spite of  C. In care of  D. In addition to