• English as a Second Language (ESL) Present perfect continuous responds (p.25-26) English pre-intermediate
• English as a Second Language (ESL) Matching - presents perfect simple vs conti (p.29-31) English intermediate
• English as a Second Language (ESL) Past vs present perfect situations 10 (p.22) English pre-intermediate
• English as a Second Language (ESL) Past vs present perfect situations 9 (p.21) English pre-interemediate
• English as a Second Language (ESL) Past vs present perfect situations 8 (p.20) English pre-intermediate
• English as a Second Language (ESL) Past vs present perfect situations 7 (p.19) English pre-intermediate
• English as a Second Language (ESL) Past vs present perfect situations 5 (p.18) English pre-intermediate
• English as a Second Language (ESL) Past vs present perfect situations 5 (p. 17) English pre-intermediate
• English as a Second Language (ESL) Past vs present perfect situations 4 (p. 16) English Pre-Intermediate
• English as a Second Language (ESL) Past vs present perfect situations 3 (p.15) English pre-Intermediate
• English as a Second Language (ESL) Past vs present perfect situations 2 (p.14) English Pre-Intermediate
• English as a Second Language (ESL) Past vs present perfect situations 1 (p.13) English Pre-intermediate