He has worked in this factory _________ 1980.
A: since
B: for
C: when
D: in
A: since
B: for
C: when
D: in
举一反三
- He ( ) at the factory since he came here. A: worked B: has worked
- He said he ____ in that factory since 2005. A: has worked B: had worked
- Jack<br/>___ in this factory since he came here. A: has<br/>worked B: was working C: works
- She has been working in this factory (). A: in 1980 B: after 1980 C: since 1980 D: until 1980
- He has worked very hard ______ he entered the factory. A: when B: till C: while D: since