【华慧考博】考博英语每日一练（1.21）考博加油！1. She’s always been kind to me—I can’t just turn ______ on her now that she needs my help.
A. my back
B. my head
C. my eye
2. The doctors are very much worried about the _____ of the patient’s condition after operation.
1. When you sleep in the open air, old newspapers can _________ _________（充当）a blanket.
2. The machine has already been _________ _________（被拆开）.