The food she has prepared for the party is not enough, for there are _____people than she expected．

It is now generally believed that a good teacher should be ______ to his/her students. 

Despite their _______ plans, Chinese carmakers will find it hard to break into the developed world until this shortcoming is well behind them.

The audience waited in________silence while their aged speaker searched among his notes for the figures he could not remember.

---Look, our headmaster is over there, playing basketball with some students of our class. --- Oh, he must be ________ to his students.