14. Let $g(x)$ be a function defined on $\mathbb{R}$ with period 1. If the function $f(x) = x + g(x)$ has range $[-2, 5]$ on the interval $[0, 1]$, then the range of $f(x)$ on the interval $[0, 3]$ is $\_\_\_\_$\\
II. Multiple Choice Questions (Total: 20 points) This section contains 4 questions. Each question has exactly one correct answer. Candidates should shade the corresponding box on the answer sheet. Each correct answer is worth 5 points; otherwise, zero points are awarded.