–Could you please tell me ?Yes. They are playing in the park.A. where are the twinsB. w

问题补充：

–Could you please tell me ? --Yes. They are playing in the park.

A. where are the twins

B. where the twins are

C. where were the twins

D. where the twins were

答案：

A. where are the twins

(答案→)B. where the twins are

C. where were the twins

D. where the twins were

解析：句意：请你告诉我双胞胎在哪好吗？好的，他们在公园里玩。宾语从句的结构：主语+谓语+连接词+从句。从句在句中作宾语。从句要用陈述句的语序。如果主句是一般现在时，从句根据需要选择时态，如果主句是过去时态，从句要用相应的过去时态。Could you please表示委婉的请求，不表示过去，故选B。