问题
选择题
| They _____ 3000 English words since three years ago. |
A. learned B. had learned C. will learn D. have learned |
答案
答案：D
搜题请搜索小程序“爱下问搜题”
| They _____ 3000 English words since three years ago. |
A. learned B. had learned C. will learn D. have learned |
答案：D