After three year’s______(train),Mary began to work on a plane.They should _____(help)when they areAfter three year’s______(train),Mary began to work on a plane.They should _____(help)when they are sick.The nurses ______(not be)afraid when they were on the plane.
问题描述：
After three year’s______(train),Mary began to work on a plane.They should _____(help)when they are
After three year’s______(train),Mary began to work on a plane.
They should _____(help)when they are sick.
The nurses ______(not be)afraid when they were on the plane.
答
training, be helped, were not be
答
training, be helped, were not
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不明白的再问哟，请及时采纳，多谢！
答
training,
help
were not
答
1. training
2help
3.weren't