. When he was working there he caught a serious illness from _____ efforts he still suffers.
| A．which | B．that | C．whose | D．what |
However, it only appears in the imagination and will never be __________.
| A．realized | B．supported | C．understood | D．produced |
At the beginning, I had some difficulty with my English, and my teacher pulled me ______.
| A．down | B．over | C．up | D．through |
Washington D.C. ______ between Virginia and Maryland on the Potomac River.
A. lays. B. lies C. sits D. seats
They planned to go to Beijing for sightseeing, but because of their daughter's unexpected illness they had to stay at home _____.
| A．instead | B．really | C．however | D．though |
And video cameras can be used to_______ people’s actions at home.
| A．keep | B．make | C．record | D．watch |