To their surprise, they found the lecture given by the famous professor easy ______.
| A．to be understood | B．to understand | C．understanding | D．understood |
She is not worth _ .
| A．to get angry | B．getting angry | C．getting angry with | D．to get angry with |
---Shall we go swimming? ---Ok, I’ll just go and get __ .
| A．changed | B．to change | C．to be changed | D．changing |
His remarks left me _ about his real purpose.
| A．wonder | B．wondering | C．to wonder | D．wondered |
The party was successful, but we thought it a pity not _ you.
| A．invite | B．to invite | C．inviting | D．to have invited |
_ his father had come, his face lit up.
| A．Having heard | B．When he heard | C．Hearing | D．When hearing |