—What do you usually use your computer ________?—I usually use it to search for information.
Good learners often _______ what they need to learn _______ something interesting.
Each different ________of China _______ its own special forms of traditional art.
The teacher advised the parents to talk with their son _______.
Beijing is famous _______ the capital city and it is also famous ______ the Palace Museum.
The child without parents ________ good care of by his teachers in this special school.