Can’t you do something about the handle of this ax? It’s ______ to use.

Do you think that the way of Maori life in the village will be kept _________?

Would it be ___ for you to pick me up at four o’clock and take me to the airport? 

For our middle school students, some courses are compulsory, while others are ________.

Boris has brains.In fact, I doubt whether anyone in the class has _______ IQ.