It is impolite to sit there with your feet _____ at somebody.

This is the best book _____ I have beenlooking for all this year

Compscientificskill that have made Zhongguancun________-success.

I’m terribly sorry for being late, but I _____ the wrong bus

I want to be a basketball player when I grow up，and my parents ________ my dream very much.