____ the young people keep learning it, they can pass on Dai culture from generation to generation

Little Tom is only ____ boy, however, he has already learned about 1,000 English words.

rto________withtheadvancedcountries,wemustkeeplearning

Frankwanted to learn to play _______ guitar, but he didn’t have _______ guitar.

It is reported that the United States uses _____ energy as the whole of Europe.