They are ( )these books in the box.A.puts B.put C.to put D.putting选择,最好帮我讲解一下.

They are twins.These are___books These are our pens .They are（）. these are (they)books.those are (your) ( ) books are these?Maybe they are Al( ) books are these?Maybe they are Alex's. These are our bags where are____(they)? -Are these coats_____ -Yes,they're ours. whose books are these?They're t______ at,these,are,zebras,looking,they they are looking at these zebres是什么意思 What are these?They are_______.(橘子) Are these ( ) books?A:they B :them THey love Reading.these books are（ ） Are those apple?No,[they these their] these books ____to him they are mine And 什么they?These are my grandparents. I must( ) these girls.They are poor --What are these?--They're watchs.改错 They're eyes.These are feet.