题目内容
介词填空
The baby is still sleeping, you’d better not switch ________ the radio now．
用介词填空
The equipment ________ adding sound to films had not yet been developed.
用适当的介词填空
The little girl had to charge ________ the family business because of her father's death.
The bus was late, and the driver was bent ________ reaching the school ________ time.
The cattle are fed ________ fresh grass．
用合适的介词填空
The miser buried his gold ________ secret and no one knows where it is．
