People sometimes think that shy people are cold and uninterested in other people _______ actually they are just afraid to meet them.
| A．since | B．unless | C．when | D．until |
All the books that have been contributed by the neighborhood are said ________ to the city public library the other day.
| A．being sent | B．to be sent |
| C．having been sent | D．to have been sent |
As time went on, the police _______ their search for the _______ student.
| A．handled up; missed | B．defended up; losing |
| C．stepped up; missing | D．stayed up; lost |
This situation ________. Which of the following is WRONG?
| A．deserves a further discussion |
| B．is worth further discussing |
| C．deserves being further discussing |
| D．deserves to be discussed further |
I don't know the reason ______ you were absent from the meeting, but I'm sure someone will tell me the reason ________ you haven't told me.
| A．why; that | B．that; why |
| C．Because; which | D．of which; that |
Mr. Green has two sons, and one of ______ is working as a bus driver now.
| A．who | B．whom | C．them | D．Whose |