_________ has Liu Xiang taken part in world’s competitions of 110-metre hurdles?— I’ve no idea. Let’s find it out on the Internet.
Who is your favourite writer?—Mo Yan. He is the person won the 2012 Noble Prize in Literature. We are proud of him.
.__________I am amazed at is__________she wants to find fault with others all the time.
What did you do ______ your last day off? —I took my dog ______ a walk.[ ]
Can you please tell me something about life in the future?—Oh, maybe in the future, people will _______ by robots.