题目内容

20．---When do you have art？
---We have art ______Tuesday and Thursday．（　　）
A．inB．toC．onD．from

分析 --你们什么时候上美术课？
--我们在周二和周四上美术课．

解答 答案：C
当表示时间时，in用于年、月、季节和泛指的早上、下午、晚上前；on用于日期、星期、具体的早上、下午、晚上前；to用于分钟与整点间，表示差几分到几点；from后接时间点，表示从某个时候起，常与to连用，表示从…到…此处的Tuesday和Thursday是星期，要用on．

点评 此题首先要熟悉每个选项介意的用法，再结合题干，选择正确的答案．

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