New ways have been found ___ useful things our of rubbish.
| A．for taking | B．taking | C．to take | D．take |
Please remind me in case I ______ forget.
| A．could | B．would |
| C．should | D．will |
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 |