Last month the Japanese government expressed their thanks for the aid they from China.A.

问题补充：

Last month, the Japanese government expressed their thanks for the aid they from China.

A. receive

B. are receiving

C. have received

D. had received

答案：

A. receive

B. are receiving

C. have received

(答案→)D. had received

解析：时态考查题。“上个月日本政府表达了对来自中国援助的感谢之情”expressed是过去时态，收到援助在表达之前即“过去的过去”，用过去完成时。选D