哈哈:答案是star
my brother and I (主语,我和我弟弟)can(情态动词,做谓语) sing and play the guitar(宾语) ,we(主) want to (谓语)be rock star when (时间状语从句)we(主语) grow up (谓语)
一句话中必须有主谓语
哈哈:答案是star
my brother and I (主语,我和我弟弟)can(情态动词,做谓语) sing and play the guitar(宾语) ,we(主) want to (谓语)be rock star when (时间状语从句)we(主语) grow up (谓语)
一句话中必须有主谓语