They ____ in a hospital.
A: working
B: is working
C: work
D: is worked
A: working
B: is working
C: work
D: is worked
举一反三
- The workers were made( ) 18 hours a day during the construction of the Huoshenshan hospital. A: work B: to work C: have worked D: for working
- He () in a chemical factory these days. A: work B: working C: is working D: worked
- He ________________ (not work) in the factory last year. A: didn't work B: was not working C: not working D: didn't worked
- I____(work) as an assistant manager for four years. A: work B: have worked C: am working D: have been working
- ________you need to be able to concentrate. A: At work B: Work C: Working D: Worked