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uld keep them. A. but B. and C. or D. until 4. I was writing a letter ____ she was making a telephone call. A. while B. when C. before D. until 5. Some people won’t realize the importance of their friendship ____ they lose it. A. after B. when C. until D. as A A C 6. The dress is really beautiful, ____it is too small for me. A. or B. but C. so D. and 7. I didn’t accept his help ____ I wanted to try it myself. A. because B. though C. until D. unless 8. — I like rain ____ it makes me feel cool and relaxed. — So do I. A. or B. so C. but D. because B A D 9. The nurse won’t leave her patients ____ she’s sure they are all taken good care of. A. unless B. because C. since D. if 10. Last night, the shop was closed ____ she didn’t buy any chocolate. A. so B. if C. or D. when A