—Is there any possibility you could pick me up at the airport ?—No problem A. whenB. thatC

问题补充：

—Is there any possibility you could pick me up at the airport ?

—No problem

A. when

B. that

C. whether

D. what

答案：

A. when

B. that

C. whether

D. what

解析：

that 在句中引导同语从句，补充说明possibility 的具体内容。