孩子低下头，嘟囔着道歉。
The child ___hung his head and muttered an apology.
我把外套挂在门后的挂钩上。
I ___hung my coat on the hook behind the door.
我把外套挂在了门后的钩子上。
这个提案在会议上悬而未决，因为大家意见分歧太大。
The proposal ___was hung in the meeting due to major disagreements.
