B. Fill in the blanks with the past perfect or simple past tense of the verbs in brackets.

试用括号里动词的过去完成时态或一般过去时态来填充空格。

youdao

B. Fill in the blanks with the past perfect or simple past tense of the verbs in brackets.

试用括号里动词的过去完成时态或一般过去时态来填充空格。

youdao