I__________ since three o’clock.
A: studied
B: have studied
C: am studying
D: studies
A: studied
B: have studied
C: am studying
D: studies
举一反三
- I __________from three to five o’clock this afternoon. A: am studying B: studied C: study D: have studied
- By the end of this year, I _________ English for ten years. A: am studying B: study C: have studied D: studied
- I ___________ English for two years before I came here. A: had studied B: was studying C: studies D: has studied
- If I ______ harder for the final exam, I should have passed it. A: study B: had studied C: studied D: was studying
- I _______ in Shanghai last term. But now I ______ in Beijing. A: study, studied B: studied, studied C: studied, study D: studied, studies