26
MCQ1 mark
"They've actually developed underwater robots that are very simple." (Add a question tag)
- A.Haven't they?Correct
- B.Have they?
- C.Did they?
- D.Didn't they?
SSC ENGLISH MEDIUM · English · 2018
127 questions · One at a time
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"They've actually developed underwater robots that are very simple." (Add a question tag)