.________ of the truth of the reports, he told his colleagues about it.
| A．Convincing | B．Convinced | C．To convince | D．Having convinced |
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 |
With all the magazine he needed _ ,he left the library.
| A．borrowing | B．borrowed | C．borrow | D．to borrow |
Its this TV set which you wish _ ?
| A．to have it repaired | B．to repair | C．to have repaired | D．will be repaired |
. Going out for tea with friends _increasingly popular during the past twenty years.
| A．becomes | B．became | C．has become | D．had become |
Key: C