一、单项选择（共15小题；每小题1分，满分25分）
从下列各题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
1．Auatar（阿凡达）is such _________ wonderful science fiction movie that I want to see it _________ second time．
A．a, a B．a, the C．／, the D．／, a
2．Michael Jordan has failed over and over again in his life．And that's _________ he succeeds．
A．what B．when C．why D．where
3．I'm expecting a pet dog for long，but mom has no time to buy _________ for me．
A．it B．one C．this D．that
4．At least 300 million people are using QQ _________ by Ma Huateng to chat on line．
A．create B．creates C．creating D．created
