Don’t have horse too fast, it will get tired soon. A. ran B. to run C. runs D. r

Don’t have horse ______ too fast, it will get tired soon.

　 A. ran 　 B. to run  C. runs 　 D. running

试题答案

D

解析:

 have sb./sth. doing sth.让一直做某事，或者让某物一直处于某种状态。