_云南成考网

Which of the following is an advantage of a fashion truck?

• A、It costs less than a store.

• B、It has a small I room in it.

• C、It attracts more customers.

• D、It needs repairs once a year.

51.________.

二. 词汇与语法知识（共15题，每题1.5分.共22.5分。）

从每小题的四个选择项中，选出最佳的一项。

The teacher told his students that the earth___________round like a ball.

• A、is

• B、was

• C、be

• D、had been