题目内容
—— What are you doing? —— I _____ a letter to my pen pal.
| A.write | B.am writing | C.writes | D.am write |
B
解析
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题目内容
—— What are you doing? —— I _____ a letter to my pen pal.
| A.write | B.am writing | C.writes | D.am write |
B
解析