We all know that learning a foreign language ______ time and effort.
—I hope you all enjoy yourselves in the World Park. —.
You will be ______ if you walk alone in the forest. There are many ______ snakes and carnivores (食肉动物) in it.
Now the Chinese government has made laws ________ the birds living there.
When the flood(洪水) was washing the village, people screamedand ran all directions.
That restaurant is ________ people, and they look very ________.