-How many concerts __________ up to now?
-About 25. Last night we __________ our biggest one.
| A．did you play; have had | B．have you played; had |
| C．had you played; have had | D．do you play; have had |
________to the victims of the earthquake, you can contact the local charity organizations.
| A．Contributing | B．To contribute |
| C．Being contribute | D．Contributed |
After suffering a heart attack, Michael Jackson was pronounced dead, ________a tragic end to the world’s most popular entertainer.
| A．marked | B．to mark | C．marking | D．having marked |
---I stayed at a hotel while in New York.
---Oh, did you? You ________ with Barbara.
| A．could have stayed | B．could stay |
| C．would stay | D．must have stayed |
The computers made by our company sell best, but several years ago no one could have imagined the role in the markets that they ________.
| A．were playing | B．were to play | C．had played | D．played |
Some modern teaching equipment as well as hundreds of computers ________to ten Hope Schools in South China
| A．were sent | B．was sent | C．have sent | D．had been sent |