问题
选择题
It has been 60 years ______ the two countries established diplomatic ties.
A．that
B．after
C．from
D．since
答案
答案：D
句型it is/has been +段时间+since“自从…以来多长时间”“自从这两个国家建立外交关系以来60年了”选D。
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It has been 60 years ______ the two countries established diplomatic ties.
A．that
B．after
C．from
D．since
答案：D
句型it is/has been +段时间+since“自从…以来多长时间”“自从这两个国家建立外交关系以来60年了”选D。
