(2013·成都七中考前模拟)If you decided to study in America, you have no choice but ________ your English greatly.

_____ is believed to be the most excellent in all aspects will win a scholarship.

在京剧《甘露寺》中，乔国老有几句唱词形容赵云：“他四弟子龙_______将，盖世英雄冠九州，_______救阿斗，杀得曹兵个个愁……”横线处应当选择（ ）。

l underground stations are under construction at the same time these days, ________ the rush hour traffic even worse.

Look! What’s on the ground— Oh, it’s my sweater. Please .