Thanks; To the student; To the teacher; 1-4 Present continuous and present simple (I am doing and I do); 5-8 Past simple and past continuous (I did and I was doing); 9-14 Present continuous and present simple, past continuous and past simple (I am doing and I do, I was doing and I did); 15-18 Present perfect simple and continuous (I have done and I have been doing); 19 Present perfect simple and continuous, and simple past (I have done, I have been doing and I did); 20-24 Present perfect and present (I have done/I have been doing, I do/I am doing); 25 Present perfect, present and past (I have done/I have been doing, I do/I am doing and I did); 26-32 Present perfect and past simple (I have done and I did); 33-38 Past simple, past continuous and past perfect (I did, I was doing and I had done/I had been doing); 39-43 Past simple, past continuous and used to (I did, I was doing and I used to do); 44-45 Present, present perfect and past tenses; 46-50 Present tenses for the future and will/shall (I do, I am doing and I'll do); 51-54 The future: Will/shall, going to and present continuous (I'll do, I'm doing and I'm going to do); 55 Future: revision section; 56-57 Can, could and (be) able to; 58-59 May/might; 60 Can/could/may/might; 61-65 Must /can't/may/might; 66-70 Must(n't)/needn't/should(n't) /don't have to; 71-74 (Don't) have to/should(n't)/had better(not) /ought (not)to; 75-77 Should; 78-83 If I do and if I did; 84-87 If I did and if I had done; 88 Conditionals: revision section; 89-91 I wish...; 92-102 The passive; 103 Have something done; 104-108 Questions; 109-118 Reported speech; 119-124 Verb + -ing and to...; 125-126 Prepositions and expressions + -ing; 127 I'm used to doing and I used to do...; 128 Prepositions + -ing and to ...; 129 Verb forms: revision section; 130-132 Countable and uncountable; 133-134 A and an, some and the; 135-136 The; 137-141 Quantifiers and pronouns; 142-145 Relative clauses; 146-148 Adjectives and adverbs; 149-150 Comparatives and superlatives; 151-153 Word order - adverbs with the verb; 154-156 Prepositions of time; 157-158 Prepositions of place; 159-160 Prepositions (general); 161-162 Adjective/verb + preposition; 163-164 Phrasal verbs; 165-166 Spelling; Key.