When/while at the same time! Hope to be useful! .Lots of exercises to reinforce and review the usage of when and while and the verbs in the past simple and the past continuous.



when-while-exercise-including-answer-key-grammar-guides_129487.doc

Grammar Check - When & While + Irregular Verbs Review

grammar-check-when-while-irregular-verbs-review

Let's do English ESL general grammar practice. When/while at the same time! Hope to be useful! .Lots of exercises to reinforce and review the usage of when and…