The twin girls killed their parents______ cold blood[ ]

Did you make sense of what the man said just now?—No, his meaning didn’t ______ ．Would you explain it to me?

What did you do before you came here–I _______ in a factory.

still remember theaccident— Yes Actually, I have experiencednothing more ________

Do you want to keep goldfish — No, they are ____ difficult ____ take care of.