①蝗虫 ②章鱼 ③袋鼠 ④狗 ⑤飞蛾 ⑥大象 ⑦海龟 ⑧马
A:①③⑦
B:②④⑤
C:③④⑤
D:④⑥⑧
认认真真 老老实实 ____ ____ ____ ____
2983-627=____
49×39=____
—Just a minute. I'll have Bob ________ you to your room.