engine bell
举一反三
- Listen, there ______. A: going the bell B: goes the bell C: the bell goes D: the bell going
- ________________ ,the students knew it was time to begin class. A: To have heard the bell B: To hear the bell C: Heard the bell D: Hearing the bell
- ---Listen! There ________.---Oh, yes. There______. A: goes the bell; it goes B: goes the bell; goes it C: the bell goes; it goes D: the bell goes; goes it
- and as the inline engine, V-type engine, boxer engine and W-type engine according to the number and the arrangement of cylinders．
- bell