Multiple choice

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

  1. going to do

  2. been doing

  3. did

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

The sentence uses the present perfect continuous tense, which requires 'been doing' to describe an ongoing action that started in the past. Other options do not fit the auxiliary verb 'have'.

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