Exercise 7 No.1 (Original) Genetics (has, have) drawn increasing interest in recent years. (Revised) Genetics has drawn increasing interest in recent years. No.2 (Original) A statistical Taguchi approach in addition to a backpropagation neural network model (is, are) developed in this study. (Revised) A statistical Taguchi approach in addition to a backpropagation neural network model is developed in this study. No.3 (Original) Neither conventional models nor previous literature (address, addresses) the backpropagation delay problem in this structure. (Revised) Neither conventional models nor previous literature addresses the backpropagation delay problem in this structure. No.4 (Original) Unknown variables or time significantly (influence, influences) the product quality when the machine parts are in close proximity to each other. (Revised) Unknown variables or time significantly influences the product quality when the machine parts are in close proximity to each other. [Note 2.12] Avoid wordiness by saying near instead of in close proximity to. No.5 (Original) The number of theoretical investigations on bubble/liquid displacement in a tube (is, are) increasing. (Revised) The number of theoretical investigations on bubble/liquid displacement in a tube is increasing. No.6 (Original) The physical phenomena associated with gas penetration within the polymer melt (require, requires) further clarification. (Revised) The physical phenomena associated with gas penetration within the polymer melt require further clarification. No.7 (Original) Neither of the conditions (affects, affect) gas penetration within the polymer melt much. (Revised) Neither of the conditions affects gas penetration within the polymer melt much. [Note 2.13] Depending on the sentence’s context, significantly, markedly, and substantially can be used as alternatives to much and greatly when the Chinese meaning is 很多. No.8 (Original) Members of the scientific community that (studies, study) genetic similarities between rats and humans (is, are) divided on the issue. (Revised) Members of the scientific community that studies genetic similarities between rats and humans are divided on the issue. No.9 (Original) Either surface tensions or thickness ratio (plays, play) an important role in determining the interface shape of a bubble nose. (Revised) Either surface tensions or thickness ratio plays an important role in determining the interface shape of a bubble nose. [Note 2.14] Depending on the sentence’s context, critical, crucial, essential, pertinent, relevant, significant and vital can be used as alternatives to important when the Chinese meaning is 重要. No.10 (Original) Each of the conditions (is, are) far more complicated than reported in the above studies. (Revised) Each condition is far more complicated than reported in the above studies. No.11 (Original) Melt temperature accompanied by mold temperature in all cases (impact, impacts) skin melt thickness. (Revised) Melt temperature accompanied by mold temperature in all cases impacts skin melt thickness. [Note 2.15] Avoid wordiness by saying always instead of in all cases. No.12 (Original) To test the constructed network model and to identify the real optimal parameter setup (is, are) of primary concern in this study. (Revised) To test the constructed network model and to identify the real optimal parameter setup are of primary concern in this study.