It ____________(know) that he is an expert in linguistics.
举一反三
- We all know that he is an expert ______ this area and can be trusted. A: fo B: out C: in
- — Did you get any information from Peter— He ______an expert, but he doesn't seem to know much. A: believes to be B: is supposed to be C: thought to be D: is claimed being
- He is a well-known expert in ________.
- He was ________ as an expert in this field.
- Since he was not an expert, he picked the horses ____ random.