He gave me two answers_________the question,but________of them is right.
-- Did you read a book about customs last week?-- Yes, I found ______ very useful to know the customs of foreign countries.
Ted's mother kept telling Ted not to tell lies, but_______ didn't help.
_____a cat. We do not know_____ name.
---Is_______ necessary to learn another language? --- I think so.
I think important for us to learn a foreign language well.
