() 1. Which of the following can't have the opposite meaning by adding "un-" to it?
A.happy
B.correct
C.certain
D.important

() 2. Nothing in the world is ______ if you set your mind to do it.
A.impossible
B.wonderful
C.interesting
D.necessary

() 3. Look! It's ______ for this kind of trees to flower so early in May.
A.usual
B.common
C.unusual
D.unsure

二、阅读理解
Tangchang, a town in Chengdu, is well-known for cloth shoes. Tangchang cloth shoes are strong and comfortable to wear.
63-year-old Lai Shufang has spent over 40 years making Tangchang cloth shoes. Now she is a master. She said there are 32 steps to make a pair, and the most important step is making the soles (鞋底). To make soles, layers (层) of white cloth are glued together with flour paste (糨糊). Then the pasted layers are dried and cut into different sizes. After this, the layered cloth is beaten (敲打) again and again until it is strong enough.
Lai's hard work touched her son Ai Peng. In 2015, Ai decided to leave his job and help his mother. He used Shu embroidery (蜀绣) to make the shoes look more beautiful and opened a cloth shoes store online. He also set up open shops to show the steps of making shoes, helping more people learn about the art of cloth shoes.
() 1. What is the most important step in making Tangchang cloth shoes?
A. Making the soles.
B. Making the upper parts.
C. Making good flour paste.
D. Adding pieces of embroidery.
() 2. How many things did Lai's son do to make the cloth shoes more popular?
A. Two.
B. Three.
C. Four.
D. Five.
() 3. What is the best title for this passage?
A. A talented shoemaker, Lai Shufang
B. Handmade cloth shoes in Tangchang
C. Beautiful embroidery from Sichuan
D. Tangchang, a famous town in Chengdu