问题补充：
Daniels family their holiday in Huangshan this time next week.
A. are enjoying
B. are to enjoy
C. will enjoy
D. will be enjoying
答案：
A. are enjoying
B. are to enjoy
C. will enjoy
D. will be enjoying
解析：本题关键点最后四个单词”this time next week”是将来进行时的标志.
