问题
选择题
This is the first time that I _____ the summer palace．
A．had visited
B．have visited
C．visit
D．visited
答案
B
考查动词的时态。句型：This/It is the 序数词that 主+has/have done。
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This is the first time that I _____ the summer palace．
A．had visited
B．have visited
C．visit
D．visited
B
考查动词的时态。句型：This/It is the 序数词that 主+has/have done。