【单选题】
17. It was the headmaster _____ gave us the leave to go to the concert.
【单选题】
I leave it to your own judgement you should do it.
【单选题】
A university ____ of teachers, administrators and students.
【单选题】
This is a big class, and ______ of the students are girls.
【单选题】
The class has a/an ____ of 27 students.
【单选题】
Those gifts o rare books that were given t us were deeply _____.
【单选题】
There can be no ( ) understanding without communication between people.
【单选题】
This is the military ____, and nobody is allowed to get in without permission. ?
【单选题】
Dave ____ into the house without ____ out by his parents.
【单选题】
It was strange _______ she left without saying a word.