He is the tallest boy in his class.He can play basketball.（合成一句）
问题描述：
He is the tallest boy in his class.He can play basketball.（合成一句）
答
He is the tallest boy in his class and he can play basketball.
只要加个连词and就好了。。。
答
He is the tallest boy in his class and he can play basketball.
答
The boy who can play basketball is the tallest boy in his class.
这是我自己回答的哦