【题目】He always ______ at the party. Now, he _________. ( )
A. sings, sings B. is singing, sings
C. sings, is singing D. is singing, is singing
【答案】C
【解析】
略

【题目】He always ______ at the party. Now, he _________. ( )
A. sings, sings B. is singing, sings
C. sings, is singing D. is singing, is singing
【答案】C
【解析】
略