一Is there any possible way to help them get rid of such a bad habit?
一To tell the truth, it’s very hard．But we on this problem．
| A．worked | B．had worked | C．are working | D．had been working |
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一Is there any possible way to help them get rid of such a bad habit?
一To tell the truth, it’s very hard．But we on this problem．
| A．worked | B．had worked | C．are working | D．had been working |
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