The biggest problem with Bob is that he never has got a/ an ___ goal in his life.

Miss Green is popular with her students as she always tries to make them _________ in her classes.

Her ________ look suggested that she was very _______ with the answer.

When a customer withdraws money from the bank, it is required to leave his signature. But how can we be sure it is_______?

Interest is as______ to learning as the ability to understand, even more so.