Multiple choice

What have you ................... since I saw you last?

  1. going to do

  2. been doing

  3. were doing

  4. doing been
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The present perfect continuous tense ("have been doing") is used to describe an action that started in the past and has continued up to the present, especially when referring to the period of time since a past event. Option A is grammatically incorrect after "have you". Options C and D do not form valid grammatical structures in this context.

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