2. 外语
  3. Parents are responsible______installing the child safety seat in their cars.

Parents are responsible______installing the child safety seat in their cars.

admin2019-09-24  41
问题 Parents are responsible______installing the child safety seat in their cars.
选项 A、with
B、at
C、for
D、in
答案C
解析 此处为固定搭配be responsible for“为……负责”，故选C。
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