6.There's no need ________ (worry)about his study.

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6.There''snoneed________(worry)abouthisstudy.6.There''snoneed________(worry)abouthisstudy.6.There''snon

6.There's no need ________ (worry)about his study.
6.There's no need ________ (worry)about his study.

6.There's no need ________ (worry)about his study.
There's no need to worry about his study.
担忧他的学习没有必要