---Where is Grace?---She in the yard.A. readsB. readC. is readingD. was reading

问题补充：

---Where is Grace?

---She in the yard.

A. reads

B. read

C. is reading

D. was reading

答案：

A. reads

B. read

(答案→)C. is reading

D. was reading

解析：考查时态。由问句句意“Grace在哪里？”可知“她正在院子里读书”。应用现在进行时。