Can you __________ the words in Japanese?

At the top of the high mountains, there is very _____ oxygen in the air.

—I always forget what I want to buy when I go to the market. —Well, you can make a ______ of things you want to buy.

You don’t have to _______ every new word in the dictionary while reading. 

– Can you ______Chinese, Tony?_ Yes ,but to _____ the truth, I could hardly ______ a word when I _____ in front of the whole school yesterday.