Its time an English lesson.A. havingB. to haveC. haveD. to having

问题补充：

Its time an English lesson.

A. having

B. to have

C. have

D. to having

答案：

A. having

(答案→)B. to have

C. have

D. to having

解析：句意：到上英语课的时间了。 句型It’s time to do sth.该做某事的时间了；后面用不定式，故选B。