问题
选择题
—What's she doing _____vacation?
—She's _____.[ ]
A. on; go camping
B. for; going camping
C. for ; goes to camp
D. under; going camping
答案
答案：B
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—What's she doing _____vacation?
—She's _____.[ ]
A. on; go camping
B. for; going camping
C. for ; goes to camp
D. under; going camping
答案：B