The library needs _____,but it’ll have to wait until Friday.
| A．cleaning | B．to clean | C．being cleaned | D．to being cleaned |
___ the room,the nurse found the tape-recorder ___.
| A．Entering;stealing | B．Entering;gone |
| C．To have entered; being stolen | D．Having entered;to be stolen |
We can never forget the days _______the two astronauts in spaceship worked together and the days _______we spent together.
| A．which; when | B．when; which | C．what; that | D．on which; when |
Who is________the fire in the kitchen?
| A．blame | B．to blame for | C．blamed | D．blame for |
Only when he told me________what trouble he was in.
| A．did I realize | B．I realized | C．do I realize | D．I realize |
The doctor suggested he_______with a serious disease and that he______to hospital at once.
| A．be infected；be sent | B．was infected；be sent |
| C．should be infected；was sent | D．be infected；was sent |