Has Jack finished painting the picture yet—- I’ve no idea. But he______ it the whole afternoon.

Excuse me, would you mind your voice down, please

Students can easily fall behind in their studies ____ they don’t manage their spare time carefully

填入下列各句中画横线处的词语，最恰当的一项是（ ）（1）正因为这样，所以马克思是当代最遭忌恨和最受诬蔑的人。……他对这一切毫不在意，把它们当作蛛丝一样轻轻拂去，只是在万不得已时才给以 。（2）群众看见了伽西莫多赤裸的驼背，突起的胸脯，长着许多硬皮和汗毛的肩膀，便____出一阵哄笑。（3）随着时间的推移，传统中某些成分会变得无处可用而逐渐淡化 衰亡；生活中某些新的因素会慢慢积淀而成为传统的新成分。

Look out! Can you see some boy students ________ basketball