牛刀小试：用适当的关系词填空。
The house _______ we live in is very big.
The boy ______ is wearing the black jacket is very clever.21cnjy.com
This is the present _____ he gave me for my birthday.
The man _______ talked to you just now is an engineer.
He talked about the teachers and schools _______ he had visited.
There is nothing in the world _______ can frighten him.
She wears a gold ring, _______ is very uncommon in our class.
We visited a factory _______ makes toys for children.
Is this the place _______ your father once lived?
I’ll never forget the days _______ I joined the League.