—I’m going to have lunch. Do you mind talking about your plan ____ lunch?
—All right. I’ll wait here in the office.
| A．after | B．before | C．over | D．until |
Those boys _____ many times not to go on line, but it doesn’t make any difference.
| A．have told | B．told | C．have been told | D．were being told |
Many old houses have been ____to make way for new roads.
| A．torn up | B．torn down |
| C．torn into | D．torn off |
____time,Chinese farmers have invented many farming techniques.
| A．Over | B．In | C．On | D．For |
When he ran downstairs, he tried to avoid ____by the teacher.
| A．being seen | B．seeing | C．to be seen | D．to see |
Books of this kind ______ well.
| A．sells | B．are sold | C． sell | D． is sold |