D.were helping
at that time的意思是“当时”,肯定要用过去式
当时正在帮助医院的老人,用过去进行时
She said that they( ）the old people in the hospital at that time
She said that they( ）the old people in the hospital at that time
A．will help
B.helped
C.would help
D.were helping
A．will help
B.helped
C.would help
D.were helping
英语人气：536 ℃时间：2019-08-19 11:24:38
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