问题
I think at the beginning of each book a__________ introduction to it is necessary.
A:wild
B:secure
C:swift
D:brief
B:secure
C:swift
D:brief
正确答案是：
同类题型
It was in the small house _______ was built with stoneby his father _______ he spent his childhood.
Where is Jim—-On the playground. He _____ basketball with his classmates.
The hotel ____ me ＄50 for asingle room during one night.
Which of the following underlined parts is different in pronunciation from others