“You can’t have your football back ____ you promise not to kick it at my dog again,” the woman said firmly.
| A．until | B．when | C．since | D．because |
相关试题
The computer was used in teaching. As a result, not only, but students became more interested in the lessons.
| A． | saved was teachers' energy | B． | was teachers' energy saved  |
C． | teachers' energy was saved | D． | was saved teachers' energy |
The children all turned ____ the famous actress as she entered the classroom. 
| A．looked at | B．to look at |
C．to looking at | D．look at |
Edward, you play so well. But I ______ you played the piano. 
| A．didn’t know | B．hadn’t known |
C．don’t know | D．haven’t known |
She brought with her three friends, none of ______ I had ever met before. 
| A．them | B．who | C．whom | D．these |
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