问题
选择题
When you are home,give a call to let me know you ________ safely.[ ]
A. are arriving
B. have arrived
C. had arrived
D. will arrive
答案
答案：B
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When you are home,give a call to let me know you ________ safely.[ ]
A. are arriving
B. have arrived
C. had arrived
D. will arrive
答案：B