The author "almost fell on the floor" because______.A．she could hardly believe her eyes.B．

By quoting （引用) the remark of a being from another planet, the author intends t

（On) seeing the boy （fell) into the river, she （sprang) to her feet and （went to) the resc

Why does the author quote the example of naturalist John Muir？A．Because he was one of the

The author quotes the example of Straus in Para. 4 to showA．the whole process of applying

By quoting Whitman in paragraph 2 the author int

He was writing__________ the glass suddenly fell on the floor.A.whileB.as###SXB##