i haven‘t seen mary these past few days,i am afraid she （）herself for some time为什么是hasn‘t been feeling

i haven‘t seen mary these past few days,i am afraid she （）herself for some time
为什么是hasn‘t been feeling

这是完成进行时态,其意思是：我这些天都没能见到玛丽,我担心她有什么不好.
期望帮你更多.多谢了!

为毛我这边答案是hadn't been feeling 我错了。。看错行了。。