—Is there any possible way to help them get rid of such a bad habit?

—To tell the truth, it’s very hard. But we ________ on this problem, trying to improve the situation .

A．worked

B．had worked

C．are working

D．had been working

妊娠期中，心悸胆怯，烦闷不安，郁郁不乐，烦躁易怒，名为（）

A．妊娠腹痛 

B．妊娠心烦 

C．妊娠肿胀 

D．胎气上逆 

E．妊娠痫证