问题
选择题
How many years is it ______ your family moved here?
A．after
B．since
C．before
D．until
答案
答案：B
It is /has been…since…did…(时间状语从句)意思为：自从…以来已有…时间了。题意为：你们家搬到这里已多长时间了？
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How many years is it ______ your family moved here?
A．after
B．since
C．before
D．until
答案：B
It is /has been…since…did…(时间状语从句)意思为：自从…以来已有…时间了。题意为：你们家搬到这里已多长时间了？