(Does/Are/Did/...) your parents (watching/watch)TV at night?

题目

(Does/Are/Did/...) your parents (watching/watch)TV at night?
() your teacher ( ) the syllabus in class once in a while?
我需要具体分析下....T T

答案

Does your parents watch TV at night?较好些,at night泛指每天晚上,所以一般现在时好些.() your teacher ( ) the syllabus in class once in a while?once in a while 偶尔.所以过去式较适合.对以前情况的询问....