19.1 Особенности предложений с союзами when, as soon as, before, after, until

19.2 Until & unless

19.3 Choose between ‘until’ and ‘unless’

19.4 Put the verb into the right form

19.5 Guess a conjunction and choose it

19.7 Add the missing words to the sentences

19.8 Combine the sentences into one

HW task 1. Choose the correct conjunction: after, before, or as soon as

HW task 2. Each of these sentences have one error with the conjunction or verb tense. Find and correct it

HW task 3. Add the missing words

19.9 Is it always impossible to use ‘WILL’ after ‘IF’ and ‘WHEN’?

19.10 Fill in the gaps in the sentences

HW task 4. Decide if each sentence is correct or incorrect

HW task 5. Choose the correct sentence

Consolidation test