高等继续教育 / 电子商务英语
正确率：100%
Perhaps it will be a long time ＿＿＿＿＿＿＿＿from abroad.
A、when Tom comes back
B、when Tom will come back
C、that Tom comes back
D、before Tom comes back
A、when Tom comes back
B、when Tom will come back
C、that Tom comes back
D、before Tom comes back
参考答案：
佳题速递：