你可以在任何你需要帮助的时候给我打电话。You can call me________ ________ ________ ________.
陆地上什么动物最重?
所有的教室昨天都打扫了一遍.
As the old saying goes, God helps those who help (他们自己).
The man is happily (描述)what he saw during his winter vacation.
It's good manners to keep your (声音) down in public.