The correct options from each drop-down menu are tenuous, cleavage, consummated, enmity respectively.
Tenuous comes from the Latin word tenuis, which means ​so weak or uncertain that it hardly exists.
Because Whitney left she had only a tenuous grasp on the material presented in class, she decided to go to the teacher for additional help.
Dentists fill any cleavage within teeth with composite resin or porcelain; in layman's terms, these holes are called cavities.
The teacher consummated their study of plants with a research project on any plant-related topic the students chose.
Your feelings of enmity toward Margaret are getting in the way of what could be a great friendship.
Thus, the above options give the correct meaning to the sentence.
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