【C19】A．sometimesB．sometimeC．some timesD．some time

【C19】A．advantageB．exceptionC．measureD．charge

【C19】A．plainB．earnestC．commonD．usual

【C19】A．tastelessB．tastyC．tastefulD．taste

【C19】A．ThereforeB．MoreoverC．FurthermoreD．However

【C12】A．sometimesB．neverC．alwaysD．usually

【C11】A．sometimesB．some timesC．sometimeD．some time