— Look! Black clouds are gathering.— Yes. A heavy rain is ______  to come.

－Have you been to Liuyang?  －No, I'd like to, _______. 

Nobody could believe what Chloe says because she is ______ changing her mind.

. Come _____. I’ll introduce my _____friend, Bob, to you.

–You are Mr. Zhang, aren’t you? --______.