do you have a lot of homework at the weekend yes ,we do .and some_英语解答

do you have a lot of homework at the weekend yes ,we do .and sometimes___very hard.a)they are
b)its c)i am d)it is

人气：340 ℃　时间：2019-08-21 01:19:55

解答

答案：D it is
解释：前面的homework 是不可数名词,用it指代.
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