Close Read the following passage carefully and choose the best word or phrase to fill in each blank.

A.open()

B.close()

C.read()

D.write()

A.read()

B.skip()

C.write()

D.close()

A.close()

B.read()

C.flush()

D.write()

A.socket() -＞ bind() -＞ listen() -＞ connect() -＞ read()/write() -＞ close()

B.socket() -＞ bind() -＞ listen() -＞ read()/write() -＞ close()

C.socket() -＞ bind() -＞ listen() -＞ accept() -＞ read()/write() -＞ close()

D.socket() -＞ connect() -＞ read()/write() -＞ close()

A.open

B.write

C.close

D.read

A.read()

B.close()

C.mark()

D.reset()

A.open

B.write

C.close

D.read

A.open()

B.close()

C.read()

D.write()