根据括号中所给的汉语写出单词，使句子意思完整正确。
There was a lot of              (野生生物)in the wild thousands of years ago.
You have to look ___________(从头到尾) the questions before answering them.
The students listened to their teacher carefully in class and tried to          (理解)what the teacher said .
We hope you can          (接受)our invitation and join us.
My teacher often ___________(建议) us to do more reading after class.