We should look up to him as a shining example of ________ to duty.

 My uncle’s house is much smaller than ours, but it is twice         expensive.

(2013·四川省六校第一次联合诊断)Both sides are determined to get what they want, and there seems to be no possibility of ________.

The boy went in _______ when he left for school that he left his key inside the house.

It is very important for us to employ a word or a phrase according to the ______ in language studies.