问题
选择题
Don’t be so upset. It won’t be ___________ your children can return to school again.
A．long before
B．long ago
C．before long
D．long
答案
答案：A
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Don’t be so upset. It won’t be ___________ your children can return to school again.
A．long before
B．long ago
C．before long
D．long
答案：A