It took ______ building supplies to construct these energy saving houses. It took brains, too.
| A．other than | B．more than |
| C．rather than | D．less than |
It was simply for that reason ____ I wouldn’t tell him the truth.
| A．why | B．which | C．so | D．that |
It’s the third time ____ I have been here.
| A．that | B．when | C．after | D．who |
Hurry up! ____ getting darker and darker.
| A．The sky is | B．It’s | C．Weather is | D．Time is |
John was ill. Have you heard about ____?
| A．this | B．he | C．it | D．the one |
____ could do such thing?
| A．Whom do you think | B．Who do you think |
| C．Do you think whom | D．Did you think who |