--- You couldn’t have chosen any gift better for me.-You didn’t do well in the interview.It seems you are not yourself today!-I burned the mid-night oil last night to get better prepared.Unfortunately,_________sleep prevented me from thinking cle

--- You couldn’t have chosen any gift better for me.
-You didn’t do well in the interview.It seems you are not yourself today!
-I burned the mid-night oil last night to get better prepared.Unfortunately,_________sleep prevented me from thinking clearly enough to produce satisfying answers.
A lack of B lacking of C lack D lacked of

A
lack接of 时是名词

B吧，考查动名词的用法