摘要： If you are weak a subject, and asking a teacher for advice can help. A. at; working hard B. in; work hard C. at; work hard D. in; working hard
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If you are weak _____ a subject, ______ and asking a teacher for advice can help.
| A．at; working hard | B．in; work hard |
| C．at; work hard | D．in; working hard |
If you are weak _____ a subject, ______ and asking a teacher for advice can help.
A．at; working hard B．in; work hard
C．at; work hard D．in; working hard
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If you are weak _____ a subject, ______ and asking a teacher for advice can help.
| A．at; working hard | B．in; work hard |
| C．at; work hard | D．in; working hard |