Some words are hard to _______ because they have many differ

Some words are hard to _______ because they have many differ it's hard to say they have many things in ) some peoplealways have a stomach ache.because they are too ( some people always have a stomachache because they are too() some people always have a stomachache because they are too ( _____ substance differ,they have some properties in common.填 some people learn english because they have to s___or w___in They are going to have a picnic _______ next week Many students say that they are willing to work hard to get in some areas,they are beginning to have environmental probl Many women are ________ than before because they have jobs a because they don't have to pay as many officers to work on t