Mary has been looking forward in the past 10 years tothe Great Wall.A. payingavisittoB. ca

发布时间：2020-08-17 04:41:25

Mary has been looking forward in the past 10 years to    the Great Wall.
A. payingavisitto
B. callon
C. beingonavisit
D. callat

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(答案→)A. payingavisitto
B. callon
C. beingonavisit
D. callat
解析：句意：玛丽在过去的十年里一直盼望去长城看看。这里pay a visit to+名词表示参观；call on 拜访某人；be on a visit在参观中；call at sp拜访某地。这里look forward to+doing盼望做某事。故排除BD，根据句意故选A。
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