The boy promises late for school again.A. don’t beB. not beC. isn’tD. not to be

问题补充：

The boy promises late for school again.

A. don’t be

B. not be

C. isn’t

D. not to be

答案：

A. don’t be

B. not be

C. isn’t

D. not to be

解析：考查动词。句意：这个小男孩许诺不再迟到。Promise to do 许诺做某事，be late for school上学迟到，所以选D项。