12. —Excuse me, where is Mr. Brown's office?—Sorry, I don't know. I_____ here for only a few days.A. work B. worked C. have worked D. will work
A: A. work
B: B. worked
C: C. have worked
D: D. will work
                    A: A. work
B: B. worked
C: C. have worked
D: D. will work
举一反三
- - Excuse me, where is Mr. Brown's office?-Sorry, I don't know. I_____ here for only a few days. A: work B: worked C: have worked D: will work
 - —Excuse me, where is Mr. Brown's office? —Sorry,I don't know. I_____ here for only a few days. A: work B: have worked C: worked D: were working
 - -- Excuse me, where is Mr. Brown's office?-- Sorry, I don't know. I _____ here for only a few days. A: work B: am working C: have worked
 - I don't like to be disturbed while I ________. A: work B: will work C: am working D: have worked
 - By the summer, Elizabeth here for ten years . A: will work B: works C: will have worked D: has worked E: would have worked F: will work
 
