题目

蚯蚓、水蛭等没有发达的骨骼，但也能灵活运动，主要原因不包括（   ） A.身体分节      B.体表有粘液     C.体壁有刚毛     D.体壁有发达的肌肉 答案：B根据句意及首字母提示完成单词【1】Jimmy didn’t do his homework. I________, he played computer games, so his parents were very angry.【2】I felt very n__________when I first made a speech in public.【3】He had no way to c__________with his brother.【4】Look! There are many c__________in the sky. It seems to rain.【5】Could you e__________the new words for me? I can’t understand them.