答案：C分析：句中缺with的宾语，C, 动名词作介词宾语。A, th

答案：C分析：句中缺with的宾语，C, 动名词作介词宾语。A, that 后面不是句子；B, 谓语与前面不一致；D, 结构不完整，covering 后少宾语。参考译文：大多数叶子都覆盖一个防水的表层或者表皮

Kết quả (Anh) 1:

Answer: c: the object of a sentence with missing from c, the gerund as prepositional object. A, not behind that sentence b, predicate is inconsistent with earlier; d, the structure is incomplete, covering after the object. Text: most of the leaves over a water surface or skin

Kết quả (Anh) 2:

Answer: C analysis: a sentence with the missing object, C, gerund as object of a preposition. A, that is not behind the sentence; inconsistent B, predicate earlier; D, the structure is not complete, covering less after the object. Passage: Most of the leaves are covered with a waterproof surface layer or epidermis