yesterday,while she was having a history lesson,she ()hear the news,这里hear用什么形态
问题描述：
yesterday,while she was having a history lesson,she ()hear the news,这里hear用什么形态
she is interested in geography and（study）it well,这里的study怎么用
答
一般过去时,heard.遇到yesterday这种时间限定就用一般过去时
一般现在时,studies.这里表示客观陈述,她对地理很感兴趣,所以用一般现在时