_ your help, we’d never have been able to get out of trouble.
| A．Had it not been |
| B．If it was not |
| C．If we had not been |
| D．If there has not been |
Shangri-la, which is _______ happy home for the local people, is also ________ home to many birds and animals.
| A．the; a | B．/; / | C．a; / | D．/; a |
--- Hi, Timmy. I’m going to Kitty’s party.
--- ________.
| A．Have fun | B．Take care | C．No problem | D．Best wishes |
The number of people invited ____ fifty, but a number of them ___ absent for different reason.
| A．were; was | B．was; was | C．were; were | D．was; were |
In order to get good marks, he has changed his attitude ______ study.
| A．about | B．of | C．to | D．on |
There is no ____ that 100 years ago animal testing was cruel, but today animals in experiments are very well taken care of.
| A．point | B．wonder | C．use | D．doubt |