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3. We were all very worried over the fact _____ you were ill. 4. It looks ______ it39。 what 14 which 15 whichever 16 whether 17 how 18 what 19 if/whether 20 when 21. There’s some doubt_____ she will be able to repay the money on time. 22. My radio doesn’t work. I don’t know _______ is the matter. 23 ______ you go or stay at home won39。1. That is _______ Lu Xun once lived.2. _______ leaves the room last should turn off the lights.3. The fact______ he had not said anything surprised all of us.4. _____ matters most in learning English is enough practice .Tomorrow is Tom’s birthday . Have you got any idea ____ the party is to be held .9。t like them is very clear. 27 There’s a feeling in me______ we’ll never know what a UFO is—not ever. 28. Perseverance is a kind of quality—and that’s_______ it takes to do anything well. knowledge es from practice is known to all. 30. The fire destroyed________ was in the building. 31. We know little about the young lady except_______ you told me. 32. I know nothing about her except_______ she is from Canada. 33 .The question he asked was________ the electrical equipment should be stored. there is life on another planet is almost impossible. 35. Please give the book to______ wins the first prize. 36. The chance ______he will attend the meet