EXPLANATIONS
Explanation 1: Uso, estructura, aspectos a recordar.
Explanation 2: Spanish
Explanation 3: Spanish
EXERCISES
Exercise 1: choose the correct word: as soon as / as long as / after / before / until / when / while
Exercise 1: type the correct answer: as soon as / as long as / after / before / until / when / while
Exercise 2: verb fill-in 1
Exercise 3: verb fill-in 2
Exercise 4: verb fill-in 3
Exercise 5: choose the correct sentence
Exercise 6: choose the correct sentence
Exercise 7: complete the sentences
