— Tomorrow we’ ll have an extra training for P.E exam . Be sure to be here on time! — No p

问题补充：

— Tomorrow we’ ll have an extra training for P.E exam . Be sure to be here on time!

— No problem , I’ ll be here 10 minutes .

A. sooner

B. later

C. more slowly

D. earlier

答案：

A. sooner

B. later

C. more slowly

(答案→)D. earlier

解析：句意为：---明天雾霾将进行体育考试特别训练，请务必按时到这。---没问题，我会提前10分钟到这。sooner：不久， later：稍后，more slowly：慢些，earlier：早点。结合语境可知应选D。