Another subway has been __________ operation since last December.
A: under
B: in
C: on
D: with
A: under
B: in
C: on
D: with
举一反三
- It has been a long time since we last ______ each other.
- Tony was caught shoplifting and has been in police _________ since last night.
- It has been ____ five years since the last time I met her. A: at length B: at random C: at least D: at last
- Since then, the suspect has been under close watch of New York’s police. A: under close survelliance B: B. under immediate supervision C: at the inspection D: at the mornitoring
- -When did he go to Paris? -Oh, hethere since last summer. A: went B: has been C: has gone D: was