你们必须学会为彼此保密.You must learn______ ____ _____for each other.

你们必须学会为彼此保密.You must learn______ ____ _____for each other.
你们必须学会为彼此保密.You must learn______ ____ _____for each other.
不要攀岩,否则你会伤了你自己.Don't climb the rocks,___ ____ ___ _____.
His favourite sport is football,____ he plays it very well.
A.but B.and C.so D.or
用适当的反身代词填空
Who will write the letter for the boss?He will do that____.
Let's just relax and enjoy____.