--What are you going to do this weekend？--I will go to visit my grandparents I have time.

问题补充：

--What are you going to do this weekend？

--I will go to visit my grandparents I have time.

A. as far as B. as much as C. as long as D as many as

答案：

解析：考查词义辨析。A据…；就…而言；B多达…（修饰不可数名词）；C只要；D多达…（修饰可数名词）；句意：—这个周末你要做什么？—只要我有时间，我就会去看我的爷爷奶奶。故C正确。