题目内容
18．Sometimes，my dad ____TV on Friday．（ ）| A． | watch | B． | watching | C． | watches | D． | watchs |
分析 有时候，我的爸爸在星期五看电视．
解答 答案：C
根据频率副词sometimes，可知本句表达的是通常情况，应该用一般现在时．主语my dad为第三人称单数，故其后的谓语动词要用三单形式．watch为ch结尾的，故应该在词尾加es．故选C．
点评 本题考查动词的三单形式．首先根据sometimes，判断出时态．其次根据动词三单形式的构成规律，写出正确的答案．
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