It is the superior intelligence and the use of language that distinguish man   ________  the other animals.

He wanted to pass the exam and stayed up very late，while this ________created further problems.

—Your sister’s plan is not quite practical.Why not try to persuade her to give it up?
—My sister is very stubborn，so it is________to try to change her mind.

I am________your suggestion that we should spend more time on this project.

The traveler didn’t know________which direction to go.

He was a good student and scored ________ average in most subjects.

—Do you often go fishing at weekends?
—Not often，I only go fishing________.

Do you think this shirt is too tight ________ the shoulders？            (2012·北京，34)

An agreement seems to be impossible because the majority of the committee members are ________ it.                                                    (2012·陕西，11)

．________all the animals I’ve ever had，these two dogs are the most sensitive to the spoken word.                                                        (2012·浙江，6)