Despite such a big difference in __________ towards what one needs, there is no doubt that people in the west regard the Chinese food as special.
---He made up his mind to devote his life________pollution_______happily.
________you can pass the exam or not depends on yourself.
---- It is generally believed that teaching is __________it is a science.
----Three students came late to school this morning, Tom and Jack_______.
----Drinking is harmful_______our health.