问题
选择题
Parents often have their children_____ little housework so that they can have more time______.
A．doing; studying
B．done; studied
C．to do; to study
D．do; to study
答案
答案：D
考查固定结构。第一空 Have sb do sth.使/让某人做某事；第二空考查have time to do sth 有时间做某事。所以选 D。