—Why do the people decide these days?—Because there’s not much to do. A. visitB. to visit

问题补充：

—Why do the people decide these days?

—Because there’s not much to do.

A. visit

B. to visit

C. not visiting

D. not to visit

答案：

A. visit

B. to visit

C. not visiting

(答案→)D. not to visit

解析：句意：为什么这些天那些人没有来访？Decide（not）to do sth意为“决定（不）做某事”；根据后面的没有很多事情可做，可知应该没有来访，故选D。