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1.
(concern) about his son's safety, the mother stayed awake waiting for him all night.
【考点】
形容词的用法;
【答案】
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语法填空（单句）
普通
课时演练
换一批
1. If we don't take measures to protect the animal, it will face
(extinct) one day.
语法填空（单句）
普通
2. With the school music festival
(approach), I'd like to invite you to take part in it.
语法填空（单句）
普通
3. With the math problem
(approach), we waved goodbye to our teacher and left the classroom.
语法填空（单句）
普通