1.the boy is good at physics(改为同义句)
the boy _does_____well__in physics(每空一词)
2.Mary is 15 years old.Jane is 15 years old ,too( 合并句子)
Mary is the _same age ____as__Jane.
3改错:
Jane,Alice and Rose are both my pen pals
改:both--all 两者用both ,三者用all
Jane and her sisters are both tall
改:both-all