—Jane, have you finished your paper?—No, I ________ my sister with her drawing all the morning.
#101264
A
help
B
helped
C
was helping
D
have been helping
推荐题目
Professor Liu has ________ teach psychology since he came to the Central China Normal University.
#104447
A
determination to
B
been determined to
C
been determining to
D
determined to
She kept a little notebook, in which _______ the telephone numbers and email addresses of her friends.
#99815
A
wrote
B
have written
C
was written
D
were written
---Hi, let’s go skating. --- Sorry, I’m busy right now. I _______ in an application form for a new job.
#99093
A
fill
B
have filled
C
am filling
D
will fill
—Why? Where is the key to the meeting room? —Dear me! You ______ it in the taxi!
#104446
A
had never left
B
didn’t leave
C
never left
D
haven’t left