1.3.It’s hard to keep the room C_ with three kids.A.cleaning B.cleaned C.clean D.to clean 2.6._A____ books is good for us.A.Reading B.To reading C.Read D.Reads

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1.3.It’s hard to keep the room ____C_______ with three kids.A.cleaning B.cleaned C.clean D.to clean 2.6._____A______ books is good for us.A.Reading B.To reading C.Read D.Reads
1.3.It’s hard to keep the room ____C_______ with three kids.
A.cleaning B.cleaned C.clean D.to clean
2.6._____A______ books is good for us.
A.Reading B.To reading C.Read D.Reads

1.3.It’s hard to keep the room ____C_______ with three kids.A.cleaning B.cleaned C.clean D.to clean 2.6._____A______ books is good for us.A.Reading B.To reading C.Read D.Reads
keep the room clean就是保持房间干净的意思
keep sth.+ 形容词就是保持什么东西什么样……
“读书”这件事对我们有好处……这里“读书”作为一件事,一个名词,而动词（read）不能用作名词,所以要将read + ing变成动名词……

1,keep sth. adj.（形容词）
2,现在分词作主语

A keep sth doing
A ing形式做主语。。

clean是形容词，keep sth clean 形容词作宾语补足语
动词加ing成动名词作主语选reading

clean作形容词是毫无疑问的
keep是系动词它后面加上形容词来修饰这个名词
to reading用法错误
reads不能做主语
read用在祈使句中表示请求或命令用在此不合语境
综上选A 动名词作主语

1.固定短语：keep sth. + adj
2.动名词作主语。

it's hard to it's hard to tell~ “It's hard to die. It's hard to comments to me. it's hard to make living It's hard to die怎么解释? It's hard to study English. 有没有It's hard to me it's very hard to p___everyone It's hard to say意思 but It's hard to 如题 it's so hard to say It's hard to tell!3Q It's hard to grow wheat. it's hard to find that kind It's hard to be a man. but it's hard to leave是什么意思 it's hard to join the fray