Victor apologized for __________ to inform me of the change in the plan.
| A．his being not able |
| B．his not being able |
| C．him not to be able |
| D．him to be not able |
--- Aren’t you ____ that Wang Kai got full marks in the English examination?
---- Yes, it is really _______.
| A．amazing; amazed | B．amazed; amazing |
| C．amazed; amazed | D．amazing; amazing |
She brought with her three friends, none of I had ever met before.
| A．them | B．who | C．whom | D．these |
We wonder ___________ quite a number of living things are dying out.
| A．that | B．as | C．why | D．when |
He was so busy that he couldn’t help ____________ the experiment.
| A．doing | B．do | C．did | D．done |
After he ________ the golf club, he has ________ a number of competitions.
| A．took part in; taken part in | B．joined; taken part in |
| C．joined in; joined in | D．joined; joined |