-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 |
_____ him speak English so fluently, and you would think him an American.
| A．Hearing | B．Hear | C．Heard | D．Having heard |
There is a crowd of people in front of the house over there. What do you suppose
_____ there?
| A．is happened | B．has happened |
| C．happening | D．to have happened |
I don’t like _____ speaking ill of each other.
| A．Jack and Henry | B．Jack’s and Henry’s |
| C．Jack and Henry’s | D．Jack’s and Henry |
The electricity ____, the light went out.
| A．cut off | B．having cut off | C．was cut off | D．had cut off |
The subjects we have at school _____biology.
| A．including | B．include | C．included | D．to include |