An earthquake killed over fifty people in this area, ______ hundreds of people homeless.
| A．to leave | B．leaving |
| C．left | D．having left |
Using bicycles ______ greatly to people’s physical fitness as well as easing traffic jams.
| A．substitutes | B．attributes | C．distributes | D．contributes |
I stopped and said hello to her when I saw her but she _____ me completely and walked on.
| A．ignored | B．greeted | C．honored | D．recognized |
It has been proved _______ violence on television has a bad effect on children.
| A．whether | B．because | C．what | D．that |
Mr Smith suggested the problem worth paying attention to ________ at the meeting.
| A．should discuss | B．was discussed | C．being discussed | D．be discussed |
As you know, there are a few formalities to be _____ before you enter a foreign country.
| A．gone through | B．gone against | C．gone over | D．gone up |