【正文】
imes , they moved apart. could be heard was putting pieces of wood over the windows was helping his mother make dinner fell asleep was dying down 1 . While John was playing the piano, Mary left the house. John was playing the piano when Mary left the house. 2. While John was cleaning the room, Mary turned on the radio. John was cleaning the room when Mary turned on the radio. 3. While John was shopping, Mary took the car to the car wash. John was shopping when Mary took the car to the car wash. While was was While When was was were 。 ? 過(guò)去進(jìn)行時(shí)的時(shí)間狀語(yǔ): ? At this/that time yesterday /last Sunday… ? At + 點(diǎn)鐘 + yesterday /last night… ? 一般過(guò)去時(shí)的時(shí)間狀語(yǔ): ? yesterday/ the day before yesterday/ ? Last …/ …ago/ in + 過(guò)去年代 Ask and answer in pairs Where were you at 6:00 yesterday evening? What were you doing ? ? 1 in a river swimming ? 2 in a park playing basketball ? 3 in a shop doing some shopping ? 4 at home cooking ? 5 at home doing my homework shout climb What were