Question

【题目】用括号中所给单词的适当形式填空。

1. I take my dog out for a walk ________ (one) a day.

2. There’s somebody ________ (hide) behind the door.

3. Sandy does her homework ________ (careful) than Tom.

4. There are many tall ________ (build) on both sides of the street.

5. Why does she look ________ (worry) today? What’s the matter?

Answer 1

【答案】

1.once

2.hiding

3.more carefully

4.buildings

5.worried

【解析】

1.思路分析：本题考查的是频率副词。要做对此题，要弄清频率副词的用法。

名师解析：once a day 一天一次。one是基数词，而句子中需要一个表示频率的副词，故用once一次。本句句意为“我带我的狗散步一天一次”。因此答案为 once。