________________ ,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
A: To have heard the bell
B: To hear the bell
C: Heard the bell
D: Hearing the bell
举一反三
- While watching TV, _________。 A: the doorbell rang B: the doorbell rings C: we heard the door bell ring D: we heard the door bell rings
- "He closed his ears to the sound of the lunch bell," means ______. A: he did not hear the lunch bell. B: he heard the lunch bell but didn't go for lunch C: he put something in his ear to close them D: he did not know it was the lunch bell
- The pupils went toward the door as soon as they heard the bell ring.
- Listen, there ______. A: going the bell B: goes the bell C: the bell goes D: the bell going
- ---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