这次测试很难，我没能回答出最后一个问题。

The test was difficult, and I couldn't ___answer the last question.

在求职面试之前，她必须完成一项性格测试。

Before the job interview, she had to ___answer a personality test.

请记得完成你数学作业中的所有问题。

Please remember to ___answer all the questions in your math homework.