英语名词性从句的连接词不可省略的连词的两种情况1. 介词后的连词 2. 引导主语从句和同位语从句的连词不可省略. 帮忙各

1.借此后面的名字性从句就只有宾语从句,连接宾语从句的常用的连词有：that,if,whether,who,whom,whose,what,when,where,how,why,whoever,whomever,whenever,wherever等.
The new book is about animals.
2.主语从句That we can’t get seems better than what we have.
同位语从句The thought came to him that maybe the enemy had fled the city．