a lot of 用于否定句还是不用于否定句

lots of和a lot of可以用于一般疑问句和否定句吗? ever用于肯定句还是否定句 much 用于肯定句还是否定句 each不用于否定句而用于肯定句吗?跟either的区别? We picked a lot of oranges.（改否定句） We need a lot of rice.否定句 .如何改为否定句she does a lot of housework. she does a lot of housework .如何改为否定句 You drink a lot of tea.怎样改成否定句? my mother does a lot of housework.改为否定句 he needs a lot of money(改为否定句) Betty ate a lot of pizza yestday 改为否定句