After the class，the students went out of the classroom one by one, but only Mary______.
| A．left | B．hadleft | C．wasleaving | D．wasleft |
George. W. Bush, _______ President of the United States, is to visit China _______ third time.
| A．a；a | B．the；a | C．/；a | D．/；the |
--- Beautiful day, isn’t it? Shall we go out for a picnic?
--- ________!
| A．Good luck | B．Sounds great | C．You are right | D．Have fun |
It’s _______ you do today that will make a difference in your life tomorrow.
| A．what | B．that | C．how | D．which |
Mr Green showed his students some photos ________ at World Expo 2010 Shanghai.
| A．taken | B．being taken | C．to be taken | D．having taken |
A group of children are looking into the box, ________ about what can be inside.
| A．worried | B．curious | C．careful | D．sorry |