【C7】A．safeB．goodC．directD．worthy

【C14】A．manageB．tryC．directD．tend

【C5】A．equalB．worthC．worthwhileD．worthy

A．introduceB．showC．directD．explain

【C15】A．safeB．goodC．continuousD．secure

【C4】A．all rightB．goodC．betterD．nice

58._________A. normalB. goodC. mainD. side