_____ underground for 2 years, David says the worst thing is not the danger but the darkness.
| A．Working | B．Having worked |
| C．To have worked | D．Worked |
____ out how to put our furniture or we'll have to wait for another week to move in．
| A．Figuring | B．To figure |
| C．Figure | D．Figured |
Sometimes I act as a listening ear for fellow students ______ what is bothering them.
| A．to talk over | B．talked about |
| C．talk about | D．having talked over |
_________ in the adult ceremony, the senior students feel they are shouldering heavier responsibilities now.
| A．Swear | B．Sworn |
| C．Having sworn | D．To have sworn |
An investigation group ___________ five men and two women has been sent to the spot to look into the matter.
| A．consists of | B．is consisted of |
| C．consisting of | D．consisted of |
______ by a greater demand of vegetables, farmers have built more green houses.
| A．Driven | B．Exhausted | C．Tracked | D．Balanced |
Tsinghua University, ______ in 1911, is home to a great number of outstanding figures.
| A．found | B．founding | C．founded | D．to be founded |
________ for a long time, but he tried his best to make up for what he missed．
| A．Being ill staying in hospital |
| B．Having been ill staying in hospital |
| C．He was ill staying in hospital |
| D．To be ill staying in hospital |
________ around the Water Cube，we were then taken to see the Bird’s Nest．
| A．Having shown | B．To be shown |
| C．Having been shown | D．To show |
An increased concentration of carbon dioxide and certain other gases in the Earth’s atmosphere ______ global warming.
| A．contributing to | B．contribute to |
| C．contributes to | D．to contribute to |
Liz decided to hang a few pictures on the wall _______ the room.
| A．decorated | B．decorating |
| C．to decorate | D．decorate |
Sit down, Emma．You will only make yourself more tired,________on your feet．
| A．to keep | B．keeping |
| C．having kept | D．to have kept |
_______the virtual world of Real Cine， the headsets even have small openings _______ smells to match the environment.
| A．Adding to；give out | B．Added to；give off |
| C．To be added to；giving off | D．To add to；giving out |
—He didn’t feel a bit nervous when ________.
—No．He’d had a lot of time ________ for it after all.
| A．interviewing；to prepare |
| B．interviewed；to prepare |
| C．interviewing；preparing |
| D．being interviewed；preparing |
The school had promised to keep parents fully _____ about the conditions of their children at school．
| A．inform | B．informing |
| C．informed | D．being informed |
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