6. She had been at the company for 10 years and knew all the ___.
A. ins and outs B. up and down C. on and off D. back and forth
A. ins and outs B. up and down C. on and off D. back and forth
举一反三
- She had been at the company for years and knew all the ___. A: on and off B: up and down C: ins and outs D: back and forth
- She had been at the company for 10 years and knew all the ___ A: up and down B: ack and forth C: ins and outs D: on and off
- She had been at the company for 10 years and knew all the ___.(5.0) A: ins and outs B: up and down C: on and off D: ack and forth
- She had been at the company for 10 years and knew all the .
- He was walking ( ) along the corridor. A: back up B: back down C: back and forth D: back of