【C5】A．seldomB．muchC．neverD．often

【C13】A．almostB．surelyC．neverD．seldom

【C12】A．seldomB．sometimesC．usuallyD．never

【C2】A．SeldomB．AlwaysC．FrequentlyD．Rarely

【C3】A．seldomB．alsoC．yetD．even

【C6】A．seldomB．alwaysC．oftenD．never

【C5】A．MainlyB．MuchC．MostD．One