Great changes have taken place in our school ____ you left.
A: since
B: until
C: before
D: when
A: since
B: until
C: before
D: when
举一反三
- Great changes have taken place since you _____. A: left B: leave C: leaving D: have left
- Great changes have taken place since you _____.
- Great changes have taken place _____ I started junior high school. A: when B: since C: after D: until
- Great changes _____ place since he left here. A: have been taken B: have taken C: were taken
- Great changes have taken place since then in the factory_____we are working. Great changes have taken place since then in the factory_____we are working.