Every pupil has his own potential so it is not proper to _____them ____ two kinds.

Peterson used to work in a remote mountain village school, which is only _____ on foot.

What does Mrs Li teach—She is ________ English teacher, and she teaches__________ English very well.

Why don’t you put the meat in the fridge? It will ____ fresh for several days.[ ]

123. The student carefully to the headmaster that his late arrival was caused by traffic jam.