He can speak _______ English _______ Chinese, although he is a Japanese.

How do you go to work—I usually go to work _____.

_______ difficulty we meet with, we must finish it on time, because the opportunity is_______ valuable．

.He might have_____ his idea about the artat the exhibition much better if he had planned what he wanted to say.

My father told me a story that ________European woman helped him a lot when he was in America in ________ 1970s.