We must be p________ if we ask others questions.
Kate r________ a letter from her grandparents three days ago.
She is an e________ teacher, so we all like her class.
you must be careful to c________ the road. It’s dangerous.
The teacher looks very angry. Do you know what h________?
She was very___________(紧张) while she was having a test.
It’s not right for you ___________(抄) others’ homework.
She had a very unusual _____________(经历) on last Sunday.
She wants to be a _________(科学家) when she grows up.
If you have a ____________（机会）to go to America, take it.
Spacewalks can be dangerous. There is no air in space. And it’s filled with ________（有害的）radiation（辐射）.
The students are often ________（分开）into several groups by the teacher before discussing the difficult questions in class.
Wu Dajing, together with his teammates ________（赢得）China’s first gold medal at the 2022 Winter Olympics.
To make the villagers’ lives easier, our government will build a b________ over the river.
There are 5 people waiting for Nucleic Acid Testing（核酸检测）in front of me. I am the s________ one.