John had to start work at an early age, ____ his family was very poor.

 We won’t start the meeting ___ our teacher arrives.

—I hope to make decisions by myself. —OK. But remember _____________ you do, you should think about the results.   

– Hi, Sam. A nice day, isn’t it? – Yes. ________ go to the park to relax ourselves?

Lucy fell asleep_______ she was listening to music.