1.The days＿＿he spent in Australia were very exciting.A./ (正确)B.whenC.in that2.I still remember the day＿＿I joined the Young Pioneer.A.on the thatB.when (正确)C.which
问题描述：
1.The days＿＿he spent in Australia were very exciting.
A./ (正确)
B.when
C.in that
2.I still remember the day＿＿I joined the Young Pioneer.
A.on the that
B.when (正确)
C.which
答
第一个是要加一个词做spent的宾语，省略了that/which.
第二个就是我们常用的状语从句，the day是时间用when 表示
答
第二题
文法上
I still remember the day I joined the Young Pioneer
并没错
但即然要选 ， 就选一个也是对的 就是了
答
前一句,定语从句,即the days在后面从句中充当成分,后面句子作为定语修饰the days,所以选a.也可以用that/which.
后一句,状语从句,表示时间,所以用when
答
第一个是要加一个词做spent的宾语，省略了that/which.
第二个本来是on the day(on which=when)