【C6】A．wouldB．shouldC．mustD．might

If only I ______ play the guitar as well as you!A．wouldB．couldC．shouldD．might

【C10】A．wouldB．didC．couldD．should

If only I ______ play the guitar as well as you![2006]A．wouldB．couldC．shouldD．might

【C20】A．canB．shouldC．willD．must

【C9】A．couldB．shouldC．mayD．must

【C5】A．oughtB．shouldC．wouldD．could