When did the Shanghai Expo open —_______May 1st, 2010. A．In

_____ is no doubt that the Dallas Mavericks will defeat the Washington Wizards in the next game?[ ]

__ at the cafeteria before, Tina didn’t want to eat there again.

It seems that living green is____ easy and affordable A small step makes a big difference[ ]

he didn’t ________an important position, he got along very well with almost everybody and was trusted by most of his leaders.