---Wasn’t it Dr. Wang who spoke to you just now?
----_______.
A.I didn’t know he was | B.Yes, it was | C.No, he wasn’t | D.Yes, he did |
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---Wasn’t it Dr. Wang who spoke to you just now?
----_______.
A.I didn’t know he was | B.Yes, it was | C.No, he wasn’t | D.Yes, he did |