Humans’ activities have pushed some endangered animalsinto a situation we will probablynever see them

Students must be strict _________ theirstudies and teachers should be strict ________ their students.

u feeling _____—- Yes, I’m fine now

The little boy likes playing _____ tennis and playing ______ the guitar.

(2014·福建名校质量检查)The tanker，which was full of petrol，________and gave off heavy and dark flames the moment a truck knocked into it.