His physical disability makes _____ rather difficult for him to find a good job.
— What do you think of the first lecture by Ms Li?—Well, it’s quite _______ and all of us are quite ______ at it.
The academic report was ________ a failure; it was a great success.
It is often said that _________ teachers live _________ very easy life.
_____ you are supposed to do _____ you don’t like a thing is changing it.Don’t complain.
He is color-blind and can’t _____ red from green.