英语疑难问题

Question

用合适的关系词填空：
1.This is the first letter--------I've received from him since he left.
2.1969 is the year------my sister was born.
3.China is the country------he visited last year.
4.The actress --------hair is golden is my aunt.
5.The cause---------he failed in the experiment is not clear.

Answer 1

1. that或不填
关系词代替先行词letter，做received的宾语，可以省略不填；
关系词被序数词first所修饰，如果填的话，只能使用that

2. when 或 in which
when = in which = in the year，在定语从句my sister was born中充当时间状语。

3. which/that或不填
关系词代替先行词the country，做定语从句中visited的宾语，指物，可以用that或which，当然也可以省略不填

4. whose
whose = the actress'，在定语从句中充当hair的定语。
即：whose hair is golden = the actress' hair is golden

5. why
why在定语从句he failed in the experiment中充当原因状语。

参考资料：英语牛人团

Answer 2

1.that
2.when
3.which/that/-
4.whose
5.why

Answer 3

that,that,that,whose,why