【正文】
—________. A. Yes, they are B. Sorry, I don39。t know C. No, they aren39。t D. Yes, they are in the room 單元語法聚焦四 C B Ⅱ .用 in, on或 under填空 1. —Where is my schoolbag, Mom? —It39。s________ your grandparents39。 room. 2. Linda39。s English book is ________ the desk. ________ the floor(地板 ). 3. Some birds(鳥 ) are________ the tree. 4. A map is ________ the wall. 5. Mary39。s pen is ________ the pencil box. 單元語法聚焦四 in under on in on in