问题
选择题
Mr. Smith's _________. Let's wait for him here. [ ]
A. hasn't arrived
C. doesn't arrive
B. didn't arrive
D. couldn't arrive
答案
答案：A
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Mr. Smith's _________. Let's wait for him here. [ ]
A. hasn't arrived
C. doesn't arrive
B. didn't arrive
D. couldn't arrive
答案：A