Unit 1 Related Technical Terms Grammar-Adverbial Clause of Time Key to Exercises Chinese Version of the Text Unit 2 Related Technical Terms Grammar-Adverbial Clause of Place Key to Exercises Chinese Version of the Text Unit 3 Related Technical Terms Grammar-Adverbial Clause of Manner Key to Exercises Chinese Version of the Text Unit 4 Related Technical Terms Grammar-Adverbial Clause of Concession Key to Exercises Chinese Version of the Text Unit 5 Related Technical Terms Grammar-Adverbial Clause of Condition Key to Exercises Chinese Version of the Text Unit 6 Related Technical Terms Grammar-Adverbial Clause of Reason Key to Exercises Chinese Version of the Text Unit 7 Related Technical Terms Grammar-Adverbial Clause of Purpose Key to Exercises Chinese Version of the Text Unit 8 Related Technical Terms Grammar-Adverbial Clause of Result Key to Exercises Chinese Version of the Text Unit 9 : Related Technical Terms Grammar-Adverbial Clause of Comparison Key to Exercises Chinese Version of the Text Unit 10 Related Technical Terms Grammar-Review of Adverbial Clauses Key to Exercises Chinese Version of the Text Unit 11 Related Technical Terms Grammar-Subject-Verb Agreement Key to Exercises Chinese Version of the Text Unit 12 Related Technical Terms Grammar-Emphatical "It" Key to Exercises Chinese Version of the Text Unit 13 Related Technical Terms Grammar-Inversion Key to Exercises Chinese Version of the Text Unit 14 Related Technical Terms Grammar-Subjunctive Mood (I) Key to Exercises Chinese Version of the Text Unit 15 Related Technical Terms Grammar-Subjunctive Mood (II) Key to Exercises Chinese Version of the Text Unit 16 Related Technical Terms Grammar-General Review Key to Exercises Chinese Version of the Text