问题补充:
If only I a few days ago!Then I wouldn’t have been feeling so worried now.
A. looked ahead
B. could look ahead
C. were to look ahead
D. had looked ahead
答案:
A. looked ahead
B. could look ahead
C. were to look ahead
(答案→)D. had looked ahead
解析:考查虚拟语气。如果前几天我能看到现在!那么我就不会感觉如此担心了。条件从句中对过去的虚拟用过去完成时态,故选D。