题目

Many Chinese students find it difficult to learn English, but not Chinese, because Chinese is their mother language. In fact, Chinese is much more difficult to ___ than English.Still some students in other countries can speak Chinese very ___. If you don’t see them, you will think they are Chinese. What ___ them successful?“For me, conversation is the most helpful. I try to speak in ___. If you only listen to what others speak, you will be good at ___ . But if you talk as ___ as you can, you will find you can speak good Chinese,” says Jenny Brown, an English girl. Now she is ____ Chinese植物进行呼吸作用的时间是（ ）A．在光下B．在白天C．在夜晚D．在白天和夜晚