Please look the biackboard这里哪儿错了

“Please look on the biackboard."改错? please look the blackboard这句话哪儿错了 look at the biackboard.(用let改写句子） Not open the window,please.这里哪里错了? the,at,and,biackboard,boys,look,let's,girls怎么组成句子 the,at,us,and,biackboard,boys,look,let,girls(连词成句） to,the,please,go,biackboard这些英语单词能组成什么句子（注意大小写及标点符号） please look ----- the blackboard. Look the photo ,please look at the ( ),please Please look this bird.那里错了? Please look the words改错