To their surprise, they found the lecture given by the famous professor easy ______.
| A．to be understood | B．to understand |
| C．understanding | D．understood |
________ you’ve tried yourself, you’ll never know what an exciting game bungee jumping is.
| A．Though | B．Because | C．Unless | D．If |
Please tell me the problems ________ at yesterday’s meeting quickly. The manager is calling me!
| A．being discussed | B．to be discussed |
| C．discussed | D．having discussed |
— Thank you for attending my birthday party tonight.
— ________
| A．It’s my pleasure. | B．It’s all right. |
| C．It’s my duty. | D．It’s nice to say so. |
We showed great pity to the poor old man, for ________ life was hard in the past.
| A．whom | B．whose | C．who | D．that |
I think it was ________ surprise that he finished the work without ________ rest.
| A．a ; the | B．/ ; the | C．/ ; / | D．a ; / |