一、单句语法填空。
1．The ________ (develop) of the information technology was the greatest advance of the 20th century.
2．If you want to know about the hotel，you can call the _______ (operate) to find out the information.
3．The boy is very clever and he shows high ________ (intelligent) in study.
4．________ (real) is not the way you wish things to be but the way they actually are.
