28. Not until the train pulled into the next station ______________ her suitcase gone.
| A．Mary had found | B．had Mary found |
| C．did Mary find | D．Mary found |
You’d better cut your hair short. Our school doesn’t ____long hair.
A approve of students wear B. approve of students wearing
C. approve of students to wear D. approve of students wore
Tom is good at maths, so I think he is the student ____can help you to work out this problem.
| A．who | B．whom |
| C．whose | D．/ |
He lives in a big house ____ windows face south.
| A．of which | B．whose |
| C．that | D．which |
Family fights are the things ____I feel upset.
| A．which | B．about which |
| C．that | D．about that |
The____ teacher has much ____in teaching English.
| A．experience; experiences | B．experiences; experiences |
| C．experienced; experiences | D．experienced; experience |