改成简单句it seemed that he would catch up with othersHe seemed ____ _____up with others.
问题描述：
改成简单句it seemed that he would catch up with others
He seemed ____ _____up with others.
答
to catch
原句有形式主语,这个句子去掉形式主语就成了这个简单句.
seem to do sth.