1.The sun (rise) in the east and (set) in the west. Look! It (shine). 2.My son usually (brush) his teeth when he (finish) the meals. 3.Ba can (ride) a bike. He (ride) it to school now. 4.You (understand) the lesson now? -Yes. I (do) an exercise at the moment. I (think) I (understand) it now. 5.You (can) (turn) off the stereo, please? I (not, listen) to it. 6. What you often (do) on Sundays? We (make) shirts. We (make) them at the moment. 7.Where your father (be) now? - He (be) in his room. He (clean) the room 8.Look! The men (run) after the bus. They (want) to catch it now. 9.The moon (go) around the Earth.