The president, accompanied by his assistants, _____.
A. have arrived
B. are arriving
C. had arrived
D. has arrived
A. have arrived
B. are arriving
C. had arrived
D. has arrived
【答案】
A. have arrived
B. are arriving
C. had arrived
D. has arrived
A. have arrived
B. are arriving
C. had arrived
D. has arrived
【答案】
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