Not until some students failed in the exam _____ how much time they had wasted.
| A．didn’t they realize | B．did they realize |
| C．they didn’t realize | D．they realize |
Not only________ strict with us, but also ________for us.
| A．was the teacher; did he care | B．was the teacher; he cared |
| C．the teacher was; did he care | D．the teacher was; he cared |
--- Nancy is not coming tonight.
--- But she______!
| A．promises | B．promised | C．will promised | D．had promised |
Kathy______ a lot of Spanish by playing with the native boys and girls.
| A．picked up | B．took up | C．made up | D．turned up |
. People in Jiangsu Province are proud of they have achieved in the past ten years.
| A．that | B．which | C．what | D．how |
. After he graduated from college, he _______ his father’s business.
| A．took over | B．took up | C．took in | D．took on |