Connectors of addition: also, as well as, too, either

AS WELL AS

Explanation: in English
English Grammar: explanation + good examples + exercises offline
Exercise 1: choose the correct verb form (offline)
Exercise 2: join the sentences using AS WELL AS



ALSO -TOO - EITHER

Explanation: in English, with examples
Explanation + exercises: change the sentences form affirmative to negative
Exercise 1: choose also, too, either
Exercise 2: ADDITION . Two-answer-choice (furthermore, what's more, moreover, as well as, in addition to, besideas, also)