小学四年级英语选择题（ ）1、The windows ______ green. A . am B. is C. are( ) 2. This is ______ classroon. A .my B.me C. I( ) 3.______ the floor,please. A.sweep B.Sweep C.clean.( ) 4."let's"是下列哪个两个单词的缩写 A.let is B.let has C.let us( ) 5.There are four lights _______ our classrom. A.in B.on C .at 请翻成汉语,并说明为什么选择正确的答案

小学四年级英语选择题
（ ）1、The windows ______ green.
A . am B. is C. are
( ) 2. This is ______ classroon.
A .my B.me C. I
( ) 3.______ the floor,please.
A.sweep B.Sweep C.clean.
( ) 4."let's"是下列哪个两个单词的缩写
A.let is B.let has C.let us
( ) 5.There are four lights _______ our classrom.
A.in B.on C .at

请翻成汉语,并说明为什么选择正确的答案,谢谢大家