—I’m worried about my English.
—_____ harder, _____you will catch up with your classmates.
| A．Working, and | B．To work, or |
| C．Work, and | D．Worked,or |
—I’m worried about my English.
—_____ harder, _____you will catch up with your classmates.
| A．Working, and | B．To work, or |
| C．Work, and | D．Worked,or |
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