Darwin counted 225 flowering plants, ________ he collected and brought home 193.
| A．that | B．in that | C．of which | D．all of which |
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 |
__________ many times, he finally understood it.
| A．Told |
| B．Telling |
| C．Having told |
| D．Having been told |
I still remember __________ to the Fa-men Temple and what I saw there.
| A．to take |
| B．to be taken |
| C．taking |
| D．being taken |
__________ not to gamble during the World Cup, those crazy people had to give up.
| A．Warned |
| B．Warning |
| C．Having warned |
| D．Having been warned |
Research __________ out by several experts suggests that the oil spill in the Gulf has caused the fatal damage to the environment.
| A．to carry |
| B．carrying |
| C．being carried |
| D．having carried |