问题补充:
---It’s so cloudy. I think it. ---I think so.
A. is raining
B. rains
C. will rain
D. is going to rain
答案:
A. is raining
B. rains
C. will rain
(答案→)D. is going to rain
解析:天气多云。我认为要下雨了。我也这样想。A. is raining正在下雨;B. rains经常下雨;C. will rain要下雨;D. is going to rain根据多云的迹象判断要下雨了。由句意可知选D。
考点: 考查日常交际用语的用法。