There are so many kinds of Mp4 in the shop. We can’t decide .

Is Bill your cousin —_______. He’s my brother.

Modern forms of transportation and communication have done much to ______ the isolation（隔离）of life in Alaska.

It is said that to teach a man fishing is better than _____ him fish.

Michael was late for MrSmith’s oral class this morning.-How come? ________ I know, he never came late to class.[ ]