He is writing a letter.(对a letter提问)
He is writing a letter.(对a letter提问)
Tony is writing a letter in his room.(对writing a letter提问)
she is writing a letter.(对划线部分提问) ---------------
He is writing a letter
he is 【 writing a letter】 对括号里的单词提问
He is writing a letter in his study. (否定)
look he is (writing) a letter to his
Mary is writing ( a letter to her pen pal) 对括号内提问.
L am writing a letter对am writing a letter提问
My grandma is (writing a letter).[划线部分提问]
Kate is writing a letter to her pen pal对他提问
My sister is (writing a letter) in her room .(对括号部分提问)