—That was a           question, How did you get it right?—I just tried my luck

Tom is _______ learning English. To learn it well, he abandons all his hobbies.

The　president　made　a＿＿speech　at　the　opening　ceremony　of　the　sports　meeting，which　encouraged　the　sportsmen　greatly．

Nowadays, there is a ______ increase in children’s creativity, for they are greatly encouraged to develop their talents.

(2009湖南娄底重点高中联考)It is the test system，       the teachers，that is to blame for the heavy burden of middle school students nowadays。