题目内容
Fill in the blanks with different tenses. (用不同的时态填空。)I am tired. I________(dig)all day. After having a rest I will go on digging.
答案:have been digging
练习册系列答案
相关题目
题目内容
Fill in the blanks with different tenses. (用不同的时态填空。)I am tired. I________(dig)all day. After having a rest I will go on digging.