You can never be________careful，the road is icy and slippery.

下列各组字母中含有相同读音的一组是 ____.

Xishui lies _____the southeast of Hubei Province and ____the south of Luotian.They are good neighbours.— The population of Xishui is much bigger than that of Luotian.

g hard is not a _______ of great success, but it is among the essential requirements.

We’d better__________when he is thinking，as he prefers to solve problems on his own.