When the star fell ____ the darkness quickly at night，all the people felt it amazing．
| A．down | B．off |
| C．behind | D．through |
I wonder ______ you would like to go hiking with us this weekend.
| A．that | B．what | C．if | D．When |
Could you tell me ?
| A．what time is it |
| B．that if the earth goes around the sun |
| C．where he lives in |
| D．whether it will rain tomorrow |
— Kitty, do you know ______?
— Sure, about forty minutes.
| A．when did their class meeting begin. |
| B．where their class meeting was held |
| C．how often their class meeting is held |
| D．how long their class meeting will last |
People in Yancheng are proud of ________ they have achieved in the past thirty years.
| A．how | B．which |
| C．what | D．when |
The students came to ask the teacher___________.
| A．when will they hand in their homework |
| B．when would they hand in their homework |
| C．when they will hand in their homework |
| D．when they would hand in their homework |