英语简单问题

______Tom has done really amazed everyone in his class.
填what,因为whatTom has doney是主语从句作整个句子的主语，其中what作done的宾语；整个句子的谓语是amaze,宾语是 everyone .
It is not decided _____ the conference will be held.
其中要填 when,it为显示主语，真正的主语是when the conference will be held.
意思是会议何时被举行还没有决定。此题填whether(是否)也可以。

问题补充：
10. It is not decided _____ the conference will be held.
A. what
B. which
C. when
D. that
答案：C
因为后面从句中有主语，谓语动词也不缺宾语，所以只能用连接副词。只有C是连接副词。如果有where也可以。
连接代词（9个）：what, whatever, who, whoever, whom, whomever, whose, which, whichever
连接副词（7个）：when, where, how, why, whenever, wherever, howeve