His mother( )(not buy)a new dress last

His mother( )(not buy)a new dress last Jim helped his mother (buy) a new watch last month.用buy还是to does lucy buy a dress for her mother at last My cousin will use what he has bought his mother a new dress my mother wore a new dress yesterday He thought his mother would buy him a new shirt (改为否定句）. Tom 's jacket is ()old,so his mother wants to buy a new one his mother------（buy） a new computer for him next week. I did not buy a new notebook____my mother gave me one Mother decided _(not buy) a computer . My mother bought a new dress ____ me 英语Her mother buys a new dress for her对吗