1) She was happy______she passed the exam. a) when  b) while c) after d) before 2) I turned off the lights ________ I went to bed. a) when b) while c) after d) before 3) I took a shower _______I finished my homework. a) when  b) while c) after d) before 4) I was watching TV ___ my mom was cooking. a) when  b) while c) after d) before 5) Don’t forget to lock the door ___ you go out. a) when  b) while c) after d) before 6) ___ she finished homework, she went to bed. a) when  b) while c) after d) before 7) I was reading a book ___ the phone rang. a) when  b) while c) after d) before 8) I was doing my homework ___ my mom was cooking dinner. a) when  b) while c) after d) before 9) We washed our hands ___ we started eating. a) when  b) while c) after d) before 10) It started to rain ___ we arrived at the park. a) when  b) while c) after d) before

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