问题

Only when _________ the tea-house _______ it was the same place he’d been in last year. [ ]
A: did he reach; he realized
B: he reached; he realized
C: he reached; did he realize
D: did he reach; did he realize
B: he reached; he realized
C: he reached; did he realize
D: did he reach; did he realize
正确答案是: