问题
Could you imagine a future changed by technology ________ our lessons are taught by robots rather than human teachers
A:at which
B:that
C:which
D:in which
B:that
C:which
D:in which
正确答案是：
同类题型
It aSaturday afternoon in May ______ Margaret could arrange for me to meet herelder sister
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If you can’t do it ,you can ask me for help .
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