---When did he leave the classroom? --- He left ___ you turned back to write on the blackboard.
举一反三
- ---"When did he leave the classroom?"---"He left _______ you turned back to write on the blackboard." A: the time B: the moment C: until D: since
- When did he ______? He left immediately. A: live B: left C: leaves D: leave
- Scarcely ______ the house ______ it began to rain heavily. A: did he leave, than B: he left, than C: had he left, when D: he had left, when
- Did you ______ the time when he left the office?
- _______ he had cleaned the classroom, he left school. A: Before B: When C: After D: If