—Who knocked at the door?
—I’ve no idea. I just pretended nobody was at home, so I didn’t ask who ____ was.
| A．he | B．that | C．she | D．it |
The magnificent tower must be saved，________the cost!
| A．however | B．whichever |
| C．whatever | D．wherever |
________wants to stay in a hotel has to pay their own way.
| A．Anyone | B．The one |
| C．Whoever | D．Who |
The howto book can be of help to________wants to do the job.
| A．who | B．whomever |
| C．no matter who | D．whoever |
A cook will be immediately fired if he is found ________ in the kitchen.
| A．smoke | B．smoking |
| C．to smoke | D．smoked |
He found his son________by letters and papers and________very worried.
| A．surrounding；looked |
| B．surrounded；looked |
| C．surrounding；looking |
| D．surrounded；looking |