问题描述：
英语 Only in the past few years____
Only in the past few years____to improve the living conditions in this area.
A.something has been done B.there is something done
C.has there something been done D.has something been done.
请问,这题为什么选D?固定搭配吗?我不清楚,求清晰解释.
Only in the past few years____to improve the living conditions in this area.
A.something has been done B.there is something done
C.has there something been done D.has something been done.
请问,这题为什么选D?固定搭配吗?我不清楚,求清晰解释.
问题解答：
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