翻译This boy is working hard on his studies.

翻译This boy is working hard on his studies. The boy is working hard on his studies?对hard 提问 This boy is working hard on his studis(改为一般现在时) Tom is working ______ on his studies. This boy is working hard.划线部分提问,划线部分是working hard The boy is hard working 还是 The boy is hard-working 在这里hard-w The boy,his monther died last year,studies very hard 翻译 Robert is a clever boy and he is also a hard～working stud He is working hard-----his lessons This student is hard---working.同意句 These days he has made ()in his studies by working hard we went through hard times while working on this project.