—________ do you go to school？
—Of course by bus．
| A．How |
| B．What |
| C．Why |
| D．When |
The supermarket is open ______ midnight.
| A．at | B．on | C．till | D．/ |
She didn’t go to work ______ that morning. She slept ______ noon.
| A．/…till | B．on…till | C．at…at | D．/…at |
He was ill _____ a week, and _______ the week he ate almost nothing .
| A．for/at | B．for/during | C．during/during | D．for/for |
Days are longer ______ summer than ___________ winter.
| A．in/in | B．in/on | C．from/to | D．to/in |
Tom and Paul usually watch TV ______ weekends.
| A．at | B．in | C．for | D．/ |