Here you have some Vocabulary and Grammar practice for Unit 1.
Perfect Tenses 1
Perfect Tenses 1 Answer Key
Perfect Tenses 2
Perfect Tenses 2 Answer Key
For further practice on Perfect Tenses, you can click on the following links:
Present Perfect vs Past Simple 1 and here 2
Present Perfect Simple / Continuous
Past Perfect Simple / Continuous
Pres. Perfect Simple / Cont. and Past Perf. Simple / Cont.
Future Perfect
