The boy is _________ young to know ________.

My mother bought me a computer ______ [geim] on my ninth birthday.

What do you want to be in the future,Linda? ——I want to be ______ pilot like Wang Yaping. Working and giving lessons are so interesting and exciting.

Zhalong is an ideal home for wildlife . Many birds can find food ____ there .

One of the difficulties we have English is how to remember new words and expressions.