my brother can () very well.He is () now.A.sing,singing B.singing,sing csing,sings

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my brother can () very well.He is () now.A.sing,singing B.singing,sing csing,sings

my brother can () very well.He is () now.A.sing,singing B.singing,sing csing,sings
my brother can () very well.He is () now.A.sing,singing B.singing,sing csing,sings

my brother can () very well.He is () now.A.sing,singing B.singing,sing csing,sings
选A
我兄弟唱歌唱得很好.他现在正在唱歌.
can 是情态动词,后面用动词原型,now 表示现在进行时,用动词ing分词.