根据句意，写出括号内所给单词的适当形式。1.Ithinkthisisthe

问题详情：

根据句意，写出括号内所给单词的适当形式。

1. I think this is the ___________ (silly) mistake I have ever made.

2. They didn’t tell us the news. They wanted to keep the secret to ____________(they).

3. One who is always telling the __________ (true) is worth our trust.

4. Understanding yourself is very important to _______________ (build) self-confidence.

【回答】

1. silliest 2. themselves h 4. building

知识点：构词法

题型：完成句子