It’s 8 o’clock. The students an English class.A. haveB. havingC. is havingD. are having

问题补充：

It’s 8 o’clock. The students an English class.

A. have

B. having

C. is having

D. are having

答案：

A. have

B. having

C. is having

(答案→)D. are having

解析：句意：现在是8点钟，学生们正在上英语课。前面有具体的点时间，用现在进行时态，故选D