根据下列各句中所给音标，在空格中写出所缺英语单词，使句子通顺，正确。

Try to ________[ri'l$ks]yourself before you take an exam.

根据下列各句中所给音标，在空格中写出所缺英语单词，使句子通顺，正确。

In his dreams, he always had a lot of ________['difik+lt]jobs to do.

根据下列各句中所给音标，在空格中写出所缺英语单词，使句子通顺，正确。

I had a ________[pein]in my head.

根据下列各句中所给音标，在空格中写出所缺英语单词，使句子通顺，正确。

What a ________['ter+bl]cough! I'll take you to see a doctor.

根据下列句子及所给单词的首字母，写出所缺单词的正确形式。

Be c ________,the bus is coming here.

根据下列句子及所给单词的首字母，写出所缺单词的正确形式。

Do you u ________ me, class?

根据下列句子及所给单词的首字母，写出所缺单词的正确形式。

The people over there are meeting a few v ________.

根据下列句子及所给单词的首字母，写出所缺单词的正确形式。

It's s ________ to cross the road when the lights are red.

按要求写出下列各词的相应形式。

mistake(过去式)________

按要求写出下列各词的相应形式。

laugh(第三人称单数)________