问题
选择题
— Why are you so busy, Mike?
— I ____ a novel these days. [ ]
A. was writing
B. wrote
C. am writing
D. have written
答案
答案:C
— Why are you so busy, Mike?
— I ____ a novel these days. [ ]
A. was writing
B. wrote
C. am writing
D. have written
答案:C