____ are you going to be ____ you grow up?
| A．What, while | B．What, when |
| C．When, how | D．When, what |
The singing group will have two performances ______ October.
| A．after | B．since | C．/ | D．for |
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 |