The book is very good.It`s worth____ A buy B to buy C buying D bought ______the morning of Tree Planting Day,we planted hungreds of trees ____ the banks of the river.A In;through B On;through C In;along D On;along
问题描述：
The book is very good.It`s worth____
A buy B to buy C buying D bought
______the morning of Tree Planting Day,we planted hungreds of trees ____ the banks of the river.
A In;through B On;through C In;along D On;along
答
1 c be worth doing 值得做某事 2 d 在某一天的早晨用on ,沿着河岸栽树along.