-- It cost me 30 yuan to get here.--Well, it was crazy of you to take a taxi ________ you could come by bus as well.
--- Hi, Timmy. I’m going to Kitty’s party. --- ________.
The number of people invited ____ fifty, but a number of them ___ absent for different reason.
In order to get good marks, he has changed his attitude ______ study.
There is no ____ that 100 years ago animal testing was cruel, but today animals in experiments are very well taken care of.
He was about to make a call to Tom _____ Tom patted me on the shoulder.