问题补充:
—Have you thought of the topic for the composition?
— Not yet.I it very carefully, but I haven’t decided.
A. will consider
B. have been considering
C. had considered
D. was considering
答案:
A. will consider
(答案→)B. have been considering
C. had considered
D. was considering
解析:考查动词时态。由Not yet.以及 but I haven’t decided.可知,是一直在考虑,所以用现在完成进行时,表示一直在做这件事。