Galileo lived in the City of Pisa, ______ there is a leaning tower about 180 feet ______.

单项选择题You business interfering with my affairs.

单项选择题The villagers have already known ______ we'll do is to build the bridge.

单项选择题（）from the top of the tower, the south foot of the mountain is a sea of trees.

A.Seen
B.Seeing
C.Having seen
D.Tosee

单项选择题外语教学中，“关注个体差异”就是根据学生实际存在的爱好、兴趣和差异______。

单项选择题直接法强调______的重要性。