Intermediate Level 中级 (zhōngjí)
Correct answer: D
Analysis:
A. “出差 (chūchāi)” is the Chinese word for “be on a business trip.”
B. “旅游 (lǚyóu)” is the Chinese word for “travel.”
C. “看病 (kànbìng)” is the Chinese word for “to see a doctor.”
D. “请假 (qǐngjià)” is the Chinese word for “to ask for taking some time off.”