—Summer vacation is coming. What’s your plan? —I _______ my grandparents in the countryside.

15.—Summer vacation is coming. What’s your plan?
—I _______ my grandparents in the countryside.
A. visit B. visited C. will visit D. was visiting
【答案】C
【解析】
【详解】句意：——暑假就要来了，你的计划是什么？——我将去乡下看望我的爷爷奶奶。A. visit参观，原形；B. visited    参观，过去式；C. will visit将参观，一般将来时；D. was visiting正在参观，过去进行时，根据上文Summer vacation is coming. What’s your plan?可知用一般将来时。根据题意，故选C。