All these days he ______on his paper.
A: has worked
B: has been working
C: was working
D: is working
A: has worked
B: has been working
C: was working
D: is working
举一反三
- Although _____ very hard, he failed to turn in his research paper on time. A: worked B: has worked C: works D: working
- He ______ in the Bank of China for five years by the end of last year. A: was B: had been working C: has been working D: worked
- For some time now, Eric ______ for foreign trade. A: had been working B: was working C: has been working D: worked
- They ________ in the office this time yesterday evening. A: still worked B: has been working C: were working D: had been working
- 26.Jane was tired. She__________all day. A: was working B: has worked C: worked D: had been working