Anyone, whether he is an official or a bus driver, should be     respected.

 the patient’s progress was encouraging as he could ______ get out of bed without help.

He had promised me to come to the party, and _____.

27．My uncle’s house in the downtown area is much smaller than ours , but it is twice _______ expensive . 

Although modem organic food has become very popular, many people can' t figure out the difference between organic foods and ______ grown foods．