一句话中,前面有了一个过去式,后面要不要写过去式

举例子若：Yesterday,we went to the USA and I (see)a lot of flours.这里and 是个连词，连接的是两个并列的谓语成份，所以前面和后面的动词都要用同一时态形式Yesterday,we went to the USA and I (saw)a lot of flours.这里and 是个连词，连接的是两个并列的谓语成份，所以前面和后面的动词都要用同一时态形式Yesterday,we went to the USA and I (saw)a lot of flours.