—Long time no see.Haven't you graduated from college?—Yes.I____business management for 4 years in Beijing.
Officials believe that more than one person _____ for the big fire.
The purpose of technology is to make it easier, ______ it more difficult.
____ being too large, the color and the style of the dress suit me well.
Come and see me whenever _______.
Many people agree that_______ knowledge of English is a must in ______international trade today.