问题：
You should keep it in mind: Don’t ____ important things too quickly; instead, you should think twice before you go.
A. decide on B. depend on C concentrate on D. focus on
You should keep it in mind: Don’t ____ important things too quickly; instead, you should think twice before you go.
A. decide on B. depend on C concentrate on D. focus on
A. decide on B. depend on C concentrate on D. focus on
参考答案：