My pen friend and I keep in touch ________ sending e-mails often．
| A．with | B．by | C．on | D．of |
The bridge ____ in the 1800’s was the oldest building in this village.
| A．to be completed | B．having been completed |
| C．completed | D．being completed |
It was playing computer games that cost the boy plenty of time that he ______ spent doing his lessons.
| A．might have | B．should |
| C．ought to have | D．could |
Sarah hopes to become a friend of __________shares her interests.
| A．anyone | B．whoever |
| C．whomever | D．who |
--- Bob，are you free at the moment？I have to ask you some questions.
--- _______.
| A．It’s a pleasure | B．Ask，please |
| C．Help yourself | D．Yes，go ahead |
He appeared __________with our team's performance.
| A．satisfying | B．to be satisfying |
| C．to satisfy | D．satisfied |