He quite well but he hasn’t had time to swim since this summer.A. will swimB. Have swumC

问题补充：

He quite well, but he hasn’t had time to swim since this summer.

A. will swim

B. Have swum

C. swam

D. swims

答案：

A. will swim

B. Have swum

C. swam

(答案→)D. swims

解析：根据后面一句用了完成时态，这里表示他一直以来都游泳游得相当好，所以用一般现在时。