David apologized for _______to inform me of the change in the plan.
| A．his being not able | B．him not to be able |
| C．his not being able | D．him to be not able |
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 |
I have had my bike ___ ,and I'm going to have somebody ___ my radio tomorrow.
| A．repair;to repair | B．repairing;to be repaired |
| C．repaired;repair | D．to repair;repairing |