_____ the experiment three times now with different results each time!
A. We’ve done
B. We did
C. We’ve been doing
Run-on SentencesSimple Future TensePossessive Adjective
Next quiz: Antonyms
Brief, short-lived, fleeting, ephemeral
How to use : Read the question carefully, then select one of the answers button.
Tips : If this page always shows the same questions, make sure you correct the question first by pressing the "check answer" button.