—Why are you so busy, Mike ? —I ______ a novel these days.
#100418
A
was writing
B
wrote
C
am writing
D
have written
推荐题目
Scientists have many theories about how the universe_____.
#101876
A
came into being
B
was coming into being
C
had come into being
D
would come into being
I don’t know if it _____. You’ll get wet if it ____. You’d better take an umbrella.
#104564
A
will rain; will rain
B
rain; will rain
C
will rain; rains
D
rains; rains