【正文】
( fail pass) __________________________________________ 。 son went to school ___________ the first time yesterday. can decide to fly _________ a correct way. might cause problems ____________ them. zebra stands ____________ eyes closed. elephant goes ____________ the water. are playing ____________ each other. might be dangerous ____________ humans. 五、 單項(xiàng)選擇。 The little boy _