He _____ articles for our newspaper these three years, and he ____ about thirty articles. A: has written, has been writing B: is writing, has been writing C: has been writing, wrote D: has been writing, has written

Shirley a book about China last year but I don’t know whether she has finished it. A: has written B: wrote C: had written D: was writing E: is writing F: was written

Now he ________ a book about New York. I don’t think he will finish it. A: writes B: wrote C: has written D: is writing

Shirley ________ a book about China last year but I don’t know whether she has finished it. A: was writing B: wrote C: is writing D: has written

Lily ____ a book about China last month but I don't know whether she has finished it. A: wrote B: had written C: is writing D: was writing